Many serious psychological issues manifest in the late teens and early twenties. I was in an honors program in college, and I saw several students develop psych

Many serious psychological issues manifest in the late teens and early twenties. I was in an honors program in college, and I saw several students develop psychological disorders of varying degrees - it may not be because you are in college that you're having these issues. Schizophrenia and schizo-effective disorders , specifically, are known to develop in this age range.