Am I Mature enough?

Am I Mature enough?? That question pops up in mind. I may be mature in some aspect of my life but sometimes I feel I am immature the way I treat other people. I feel like I am in the middle of nowhere. Sometimes I am happy that I can let someone angry at me and in few minutes I will realize that the things that I have done is not good. Is this what you call immaturity? We all know that life is not that easy and we have encounter a lot of challenges of life. But what the hek is wrong with me? I DONT UNDERSTAND, I really need to think and think to be with my self and tell my self I am mature enough. Can you guys give me some advice?? I am sick and tired of the things that happen to me. I feel that I am a stupid idiot, Anywayz that is life and we shall continue our challenges.