As a 21 year old, I recognize that I'm far from being completely emotionally developed. But, I also recognize that I'm way behind others my age. I think I am too emotionally sensitive. Things people say or do really affect me. Whether I care about the person or not, I always have extreme emotional episodes after others express their feelings or opinions about me. If what they express is derogatory, I get very upset. If it's positive, I get very happy. And, I absolutely cannot deal with rejection. I want to be able to just ignore what others think and just deal with what I think. How can I achieve that goal?