I think playing a sport is really good for teenagers growing up. It's really good if they play on a team or for the school. And they should try to make as many friends as possible or a few very close friends. Teenagers also want independence from their parents because they are growing up.
Teenagers also have a increased sensitivity from criticism from other people. They also come to see themselves as more sophisticated and well-mannered. When you compare adolescents from children they would think simple minded and predictable. They also become more interested in learning their personalities.
Emotional responsibility, individual values, pursuing dreams and consistency are healthy attitudes that help keep a positive outlook on a teenager.
Teenagers during their way to adulthood should understand that approval by others is not necessary. The most important result from positive attitudes is being prone to less emotional disturbances.