Do you really feel happy?  I  always didn't know what to do before.Everyday I played and enjoyed this life.But I came to realize that I was wasting time . I think of one word "Make yourself to be an interesting person."  "Interesting " is not "funny".It means that someone is wise and learned that can attract others. When we are talking to people, we are exposing what a person we are. 
So I read many kinds of books ,do everything with all my passion ,and drive away at being an interesting person.