yes it is possible to grow out of having mental disorders. many USA states that do not label children under the age of 18 with having certain mental disorders because it is possible for mental disorders to appear in childhood and then after the child has gone through puberty and has entered adulthood their mental disorder symptoms lessen until the mental disorder is no longer. one such example is childhood schizophrenia. it can hit children as young as 4 and 5 yrs old and once the child reaches between 18 and 20yrs their schizophrenia is on its way out the door never to show its self again. another example is depression. some forms of depression his school aged children as young as 4 and 5 yrs old but by the time JR high rolls around their depression symptoms sometimes lessen and then go away never to be seen again. some children end up having eating disorders, adhd, add in early childhood but once adulthood hits their symptoms lessen and go away never to be seen again.

there are many documented cases where childhood mental disorders are prevalent during childhood but once the child becomes and adult their mental disorders are no more.

there are many documented books about children with mental disorders in public libraries in the psychology, mental health, and non fiction sections. college libraries too have many books about mental disorders and some of them have information and autobiographies about childhood mental disorders.

you can find out if your mental disorders are the kind that are going to fade and go away by talking to your treatment professionals. they can look at your history, family background, and other aspects of your mental disorders and give you an approximate idea. they cant tell you a guarantee that your mental disorders will go away or not because each person is different but they can take an educated guess. like doctors do when predicting approximate genetic mental and medical problems when a person is pregnant based on family history and the persons own mental and medical history.