Hello,,, what about your secondary sexual characters? height and growth is mainly determined by genetic and some environmental conditions, a man grows upto,, 21yrs of age, and he will reach maximum height by 21yrs. Growth hormone is responsible for longitudinal growth of a person, which is more active during adolescent. Adopt some activities like,, jogging,, playing volleyball, tennis, swimming,pull ups, helps you to grow, I there is problems with secondary sexual characters consult endocrinologist.