Girl crush helpppp

So there’s this girl (16f) who goes to my school who I (16f) really like. I’ve had a crush on her for most of the school year so far and I’m really down bad now. She’s bi and I’m a lesbian so there is a chance but I’m not that attractive and she’s gorgeous. We’ve been friends since the school year started and I didn’t realize my feelings at first but eventually I realized that she’s like super cool and is stunning and that I’m super into her. Idk if I should confess or not because I don’t wanna ruin our friendship because I really do like her but idk how I’m just supposed to be around her with the feelings I have because I don’t wanna make her uncomfortable either so idk what to do