Should I confess????

So I like this girl from my sec sch ( idk if she likes girls and dont think she does😭) but the thing Is we were never close and barely talked but I still liked her for 2 years. Now we've graduated and I was just thinking abt confessing cuz I don't have to worry abt it being awkward when we see each other. But at the same time what if she thinks I'm weird?? Like I barely talk to anyone cuz I'm introverted and just sit in the corner of the class so what if she gets creeped out or smth cuz of that?? She's also WAYYYY out of my league like even if she like girls idt she'll date me💀. her friends are also the type to gossip so word that I like her will prob spread. Ik I won't be seeing most of my Classmates anymore but still kinda feel self conscious 😕.

Update: I got rejected😔 (she did it in a nice way tho)