Bully in school

I was mentally bullied in my school. My own friends used to bully me by calling names, pushing me always, blaming me for everything. It is not like I didn’t have power, I was more like they are friends and if I fight them I will feel left out. So I used to hurt myself to get their sympathy but that also never happened. They never considered me as their friend. I was there for them just because they wanted to make fun of me, to blame me and torture me which was fun for them.