Holden's phonyness

As I have read these pat six chapters, I have noticed that Holden is phony. That means that he is a habitual liar and he thinks he is twenty-one. He drinks, he smokes, he tries to pick fights with people who are twice his size. In the real world, he would not make it because life is a game, you can't skip any spaces. I have also noticed that he is very lonely and depressed. He is homesick. I think he is doing all of this because he is crying out for attention.