According to the text, one important reason why adolescents need to learn self-regulation is to regulate\

The adolescents need to learn to regulate sexual impulses. In adolescence, the sexual impulse begins in boys and girls, and learning to control them is very important because it depends on that they can have a sexuality and healthy and stable emotional relationships.

  Initially, the sexual impulse will be directed to one's personal satisfaction, then that will change to enjoy sexuality with other people.