I am not growth up enougth

Today, i made a big mistake. I will remember it forever. I make my life in difficult way without any good feedback. I always think life is very simply and easy way. In fact, To be in a real life is not easy. We should not look down on a small thing. I am not old enough. To be honest, Some guys they are younger than me but they growth up with smart and flexible. Thank mum for giving the advise and complain to me. She is right. She knows my weakness. Why do i trust people very quickly? My dream as businessman could not be happen forever. Today you were cheated, tomorrow you would cheat other people. I dont know how could i trust people like that.............I seem to be in the middle of nothing. I am cheated and trusted by people who are always saying good to me.