Young Adult Psychotherapy: Why 18 to 25 Is Such an Important Time
Turning 18 is a strangely definite moment. One day you are legally a child; the next, you are an adult. Yet very little about becoming an adult happens overnight. There is no internal transformation on an eighteenth birthday. The questions of who we are, what we want and how we might live remain very much alive.
The years between 18 and 25 are a distinctive period of development. Greater freedom arrives alongside greater responsibility, while many of the structures that organised childhood and adolescence begin to fall away. Decisions start to feel consequential and the future, once comfortably distant, moves closer.
For many, this is an exciting period of possibility. It is also a time of considerable psychological change, when uncertainty about identity, relationships and the future becomes harder to avoid. Being recognised as an adult and feeling like one are very different things.
Becoming an Adult Takes Time
The legal definition of adulthood obscures something important about human development. The brain continues to mature through adolescence and into the twenties, with important aspects of development extending into the mid-to-late twenties. Eighteen therefore marks a legal boundary rather than the completion of a developmental process.
Psychologically, this makes sense. Childhood and adolescence usually provide structures that are easily taken for granted. School or college organises much of everyday life, while family provides another framework. As these structures loosen, greater freedom also means having to find more of one's own direction.
Relationships with parents change as independence develops without making family unimportant. Friendships and intimate relationships take on different meanings, while choices around education and work begin shaping adult life. Questions about sexuality and identity often become more personal as there is greater freedom to discover what they mean outside childhood.
There is no single point at which somebody becomes psychologically adult. It develops through experience, relationships, choices and the gradual discovery that other people do not have all the answers either.
When Difficulties Surface
Statistically, 75% of mental health problems emerge by 24, so mental health problems can become more apparent during young adult hood. Anxiety that once felt manageable starts interfering with everyday life, or depression appears during a period that was expected to feel exciting. Difficulties with anger or mood become harder to understand as relationships change and the demands of adult life increase.
Earlier experiences also acquire new meanings. Leaving home, forming intimate relationships or experiencing rejection brings questions of dependence, separation and loss into a different context. Difficulties previously contained within the familiar structures of home and school are experienced differently once those structures change.
This is particularly unsettling at an age associated with increasing confidence and independence. When life instead becomes more difficult, distress easily becomes entangled with a sense of falling behind. Other people's lives appear to be moving forward while your own seems increasingly difficult to manage.
Alcohol and recreational drugs become more accessible during this period. For most people they remain part of a wider social life without becoming a significant problem. For others, their place gradually changes as drinking or drug use becomes connected with managing anxiety, loneliness or emotional distress. The relationship between substance use and mental health then becomes increasingly difficult to disentangle.
Finding somewhere to speak openly about these experiences is not always straightforward. Parents remain important while there are aspects of adult life that feel difficult to discuss with them. Friends provide valuable support but belong to the same social world in which relationships and difficulties are unfolding. Having a confidential space outside these relationships offers something different.
When Adult Life Feels Stuck
There is also increasing concern about the number of young adults outside education and employment, while many remain living with their parents for longer. The reasons extend far beyond mental health. Housing costs, insecure employment and the difficulty of becoming financially independent have transformed the circumstances in which adulthood now takes place. Living with parents is not itself a problem, and there is no correct age at which somebody should leave home.
The difficulty arises when life begins to feel stuck. Anxiety, depression or a loss of confidence interfere with work, study and relationships. More time spent at home leads to greater isolation and fewer experiences outside it, while financial dependence makes independence feel increasingly remote. What began as a difficult period becomes harder to leave as the world outside gradually feels less accessible.
This also changes family relationships. Parents often find themselves caught between wanting to support their adult child and wondering whether that support is helping them move forward. The person at the centre of this might want independence while feeling overwhelmed by what achieving it now seems to require. Frustration and conflict develop around a situation in which everyone wants something to change but nobody knows where that change should begin.
Mental health is not always the cause of becoming stuck, but it often forms part of the picture. Understanding the situation means taking seriously both the realities of housing, work and money and the person's individual relationship to independence and the future.
Making Sense of a Diagnosis
Adolescence and young adulthood are also periods when many people first receive a diagnosis or begin wondering whether one would help them understand their experience. Autism and ADHD are increasingly identified during these years, while difficulties associated with anxiety, depression and trauma are often first recognised or named. Receiving a diagnosis can bring relief. Experiences that have been confusing for years acquire a context and earlier parts of life start to look different. Diagnosis also provides access to treatment, adjustments or support in some circumstances.
Yet knowing the name of something does not tell somebody what it means for them. A diagnosis shared by thousands of people is still experienced within one particular life.
This becomes especially important during a period when questions about identity are already prominent. Receiving an autism or ADHD diagnosis, for example, changes how somebody understands aspects of their history without providing a ready-made account of who they are. A diagnosis becomes something to make sense of rather than an answer to every question.
There is an important difference between receiving a diagnosis and finding a place for it within your understanding of yourself. Diagnosis does not always lead to ongoing support either. In some circumstances there is little available after the assessment itself. In others, medication forms an important part of treatment. During periods of severe mental distress, treatment and medication have an essential role in helping somebody remain safe and able to function. Reducing distress and working out how you want to live are different questions.
Psychotherapy provides a place to explore what a diagnosis means within the context of a person's history and relationships without allowing a diagnostic category to become the whole explanation of who they are. Treatment at times needs to concentrate on helping somebody through a period in which living has become extremely difficult. Psychotherapy also leaves room for the question of how they want to live - whilst reducing distress.
What Happens to Mental Health Support at 18?
Mental health services reflect the legal boundary of adulthood particularly sharply. CAMHS stands for Child and Adolescent Mental Health Services and, for most people, reaching 18 means leaving the children's mental health system.
For somebody already receiving support, the transition into adult services often feels abrupt. It is difficult for those who have spent months waiting for assessment or treatment and reach the age boundary without receiving the help they had hoped for. Their difficulties have not disappeared; their place within the system has changed.
Adult mental health services have a different structure and remit. GPs remain an important source of support and help people consider appropriate treatment, including medication, NHS talking therapies and referral to specialist mental health services. Each has an important place and, for many, provides the support they need.
The difficulty locally is the lack of specialist psychotherapy focused on the developmental period between 18 and 25. This leaves a gap for those who need sustained psychological work but do not require, or meet the criteria for, specialist adult mental health services, of which many are now focused on people at very high risk to self. Alongside this, brief counselling interventions have an important purpose, but they do not necessarily provide the time and expertise required to understand difficulties that have developed across years or are deeply connected with relationships and identity.
This gap matters because 18 to 25 is not an empty space between adolescence and established adulthood. It is a formative period in its own right.
Why Psychotherapy at This Age?
Young adulthood is a particularly potent time to enter psychotherapy because adult life is still taking shape. Ways of relating to others, dealing with difficult feelings and understanding ourselves begin appearing within new relationships and circumstances. What first emerges as a difficulty at university, at work or within an intimate relationship sometimes becomes a pattern repeated through later adult life.
Beginning psychotherapy at 19, 21 or 24 offers an opportunity to understand these difficulties while they are developing. The purpose is not to prevent somebody from becoming the wrong kind of adult. There is no correct version of adulthood to achieve. The work begins instead with curiosity about why this particular person is experiencing life in this particular way.
Someone often arrives with a description of the problem: anxiety, depression, anger, a relationship that has become unbearable or a growing inability to manage work or study. These descriptions matter, but the symptom does not explain itself. The same symptom means different things within different lives.
Psychotherapy therefore does not assume in advance what a difficulty means. Through speaking, connections emerge between experiences that previously appeared unrelated. The work gradually becomes less about fitting experience into an explanation and more about discovering something particular about how this person experiences themselves, their relationships and the world around them.
This takes psychotherapy beyond the question of how to get rid of a symptom. Symptoms matter because they cause distress, but they also tell us that something is happening which has not yet found another way of being understood - from which new creative solutions and pathways open.
A Space of Your Own
Psychotherapy provides a confidential relationship outside family, friendship, education and work. There is no requirement to protect somebody else's feelings, produce the right answer or understand the problem before speaking about it.
This is particularly valuable during a period when independence itself is being negotiated. A psychotherapist does not decide what career somebody should pursue, whether a relationship should end or what kind of person they ought to become. Removing uncertainty from life is not the aim either.
Instead, psychotherapy creates the conditions in which uncertainty becomes possible to think about. Contradictory thoughts, uncomfortable feelings and things that have been difficult to say begin to find words. Over time, a person hears something different in their own experience and discovers that what they thought they wanted, feared or needed was more complicated than it first appeared.
The aim is not to produce a finished version of somebody. It is to create greater freedom in relation to patterns that previously felt inevitable.
Finding Your Own Way Into Adult Life
There is enormous pressure during these years to know where life is going. Other people appear to move ahead through work, relationships and independence, while social media makes their achievements far more visible than their doubts.
Feeling uncertain then starts to resemble failure. Yet becoming more independent involves discovering that nobody else has a complete answer to what you should do with your life. Parents, teachers and professionals all have ideas about what would be good for us, but becoming an adult also involves finding a position in relation to those expectations. Psychotherapy does not provide the answer. It offers a place to take the question seriously and begin distinguishing what matters to you from the many ideas about who you are supposed to become.
Psychotherapy for Young Adults in Eastbourne and East Sussex
At Eastbourne Child Therapy, I work with children, adolescents and young adults up to the age of 25. My previous work within NHS CAMHS and specialist services means I am familiar with the transition from children's services and the psychological demands of early adulthood.
People aged 18 to 25 are welcome to contact me directly. Parents are also welcome to make an initial enquiry when they are worried about a son or daughter, although the decision to enter psychotherapy belongs to the adult themselves. Not every difficult period requires psychotherapy. Support from family and friends, a GP, university or another service can be enough. When difficulties persist, return in different forms or begin to shape relationships and everyday life, psychotherapy offers time to understand what is happening while adult life is still taking shape. Turning 18 makes somebody an adult in law. Becoming one takes longer.
Written by Ben French BSc, C-Psych, C-Obs, MA Psych. Ben French is a Child and Adolescent Psychotherapist and Psychoanalyst working with children, teenagers and young adults aged 2 to 25. He has over 15 years’ experience supporting young people’s mental health, including senior roles in CAMHS and education.
