If you bullied a person in school.. Why did you?

in elementary school I did....It came from me feeling really insecure and out of place because I was one of the only colored kids in my entire town/area and everyone else was super rich and loaded with money unlike me where both of my parents had hardworking 9-5 jobs. I was faced with a lot of ridicule and stereotyping even as a little kid and in return I guess I decided to pick on 2 kids in particular. One, because of a speech impediment and the other because of his weight. I got in a lot of trouble, as I should have, but I constantly wished even now that someone, whether it be a teacher, or guidance counselor pulled me aside and helped me understand everything that was going on....I ended up being pretty good acquaintances with the 2 kids I bullied but even at 18 i still feel like shit sometimes thinking back