I hate school

I had a fallout with my old friend group. I reached out to an older friend who i stopped talking to because ik she would’ve understood. She understood but then she reached out to them and they told her that i was fake. They also lied to her and said I called her fat. Its not true she was one of the most beautiful girls i have ever seen. I dont have a crush on her but shes gorgeous. We had a pretty good friendship. They lied to others and guilt tripped me into thinking i was the bad guy. I didn’t realize they did that until i told others abt my side. I hate myself for this whole thing i feel like its my fault. Ppl told me that I should write a letter or something explaining myself and js apologizing to her. Its so hard to make up with ppl. Shes in my literature class and i have to give a presentation soon but i rly cant do it with her in the room or i may pass out. The whole thing was back in April. Ik it doesn’t hurt to try but ik its probably gonna escalate somehow. Does anyone have any help for this or should i js kms because idk how much longer I can handle this.