Do I (M17) confess my feelings after (F-17)?

So, we had been friends since 8th grade, I was the kid with no friends and she was the popular girl (yes very cliche), we bonded over a lot of stuff, especially family problems. I'd developed feelings for her a couple months into talking but never had the balls to confess. All throughout 8th and 9th she had been the only friend I had.

Finally in 10th grade I got some confidence, made some other friends and actually went from someone random kid who used to sit in class alone to someone who people hung out with. I dated a little here and there but it never lasted past 1 or 2 months because I was still in love with her. I never confessed because I felt that too much time had passed, and just tried to suppress my feelings and keep her as my best friend.

By 11th grade it wasnt just the two of us, but there was a friend group, and even though they were suppressed, the feelings still lingered. In november 2025 we had a major falling out due to stuff we both did, I constantly tried to push her out of depression by trying to humilate her into doing something productive (which I do regret) and her trying to exclude me out of the friend group because just because I was a guy (it was her, 2 girls and me). Our argument then led to a chain reaction which caused me to lose pretty much every close friend I had.

I'm in 12th grade now and school ends in a couple months. Since then, I haven't been able to contain those feelings. I think about her every single day and it eats me alive, wanting to finally confess to her even though I know nothing will come of it and I'll just get rejected. I haven't even talked to her other than exchanging birthday wishes for almost a year now.

I don't know what to do. School ends in a few months and I don't even know if I'll ever even see her again after that.