To change as a person like that
Back then my self-esteem was so high that I was a bit egocentric and selfish, a lot actually. But then, I realized that I was not this much, and that I was just being a terrible person, which is good, however I felt so bad for my past self being so bad that I started hating myself and I was not able to convince myself other wise, now my self-esteem is terrible and my self deprecing actions makes people worried.