I did the same thing under peer pressure in junior high school. I was able to become friends with the kid we bullied while in high school. He is one of the few people I keep in touch with from high school after 30 years. It didn't take me long to understand that I need my ass kicked. I was lucky that I discovered a little empathy.
I have two daughters, 15 and 17 years old, they complain about the anti-bullying programs at school. I have to agree with them. They way liberal educators handle this situation is completely wrong. Bullies need a quick punch in the face. In most cases, the problem ends. Of course, I teach my girls to be ladies and they behave as such. They also know they will not be in any trouble with me if they stand up for themselves. They also know they won't get into any trouble by standing up to a bully teacher. The latter seems to be their biggest concern theses days.
Pub Skewls.