I need your advice

I am about a day away graduating from high school, but I thought the person who was my “friend“ was never really my friend and constantly belittled me. should I report him to the school because I want to have a peaceful graduation and am afraid he might ruin it for me.

I couldnt help feeling sad, as the person who bullied me most of my middle school and high school indirectly belittled me multiple times for the colleges I got into as he indirectly says he got into better ones. At the end of my sophomore year I decided to finally leave all that toxicity and pick up a new hobby and make a friend group around that. My senior year, he started slowly hanging around my friends as he knew them. Eventually he started to directly insult me and I was sad to see no one stood up for me. Eventually they joined in and i became the groups punching bag. Some people told me to stay silent and let it pass, but I realized that it just encouraged him to double down as did everyone else. One of them directly said to my face “we don’t want you here”. If I tried standing up for myself, he would find some way to redirect it back to me. The same case happened in middle school where some of my childhood friends at the time because i moved to that area in the 4th grade did the same thing. None of them stood up for me, and I really didn't know how to stand up for myself; I also don't know now either. So anyways, they did the same thing, and my math teacher witnessed the whole thing go down my entire 8th grade year and didn't step in. She asked me one time, "How is the situation or something?" I think i said I was ok, but I realized now I really wasn't at the time.I am just trying to go through high school. It doesn't really help I recieved all these rejections which made me feel depressed though the weekend.