Depression is an oppressed state of mind. It can develop due to difficult relationships with parents, peers, due to the fact that you did wrong, because of a break with a friend, due to illness of one of the family members, a feeling of failure or failure in some then things.
In order to overcome depression, you need to talk with someone: with parents, with someone you can trust, on the helpline – well-trained psychologists work there who can listen and help. You can get yourself out of depression with physical activities: general cleaning of the apartment, running, walking, working on a personal plot. If the feeling of depression does not go away for several days, you should consult a psychologist or doctor.
Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.