Ex advice

My ex boyfriend recently said he no longer wanted to be with me. He goes to my school and Ive came to realise he’s been speaking to someone else, that I think also goes to my school. My ex is in the same classes as me and it’s just so hard to get over him and ignore the fact he wants someone else when I see him every single day, he always lives down my road so I always see him whenever I go out. He always does stuff to make me know that he’s got a new girlfriend and he has begun hanging around near my group of friends. He’s always this constant reminder of how much I miss him and love him. We’re always in group chats with other people together where he deliberately brings up conversations about how he’s asking he’s new girlfriend to his football match and alway sending screenshots of him on FaceTime. It hurts a lot and I don’t know how to get over him? I don’t want to find another boyfriend because I’m not like that, I just need some tips and advice to help me though this last year left of school.