Your son's desire to quit school is a sign of mild depression. Other symptoms may include physical discomfort: headache, weight loss, stomach pain, muscle pain, tension, eating disorder, poor sleep and so on. Mental symptoms may include: forgetfulness, inadaptability to life, difficulty in concentration, poor performance in school, and decreased grades. Emotional manifestations may include: easy to get angry, sad, impatient, violent, etc. If not guided in time, it may lead to serious depression and suicide.
There are many ways to alleviate this situation. First of all, he needs healthy eating habits, regular life and regular exercise, such as meditation, breathing exercises and muscle relaxation exercises. If all this fails, he needs to be taken to a psychologist for professional guidance and treatment.