Girl I completely get u, I was in just about the same position your in right now. First, you needs observe, see if he has a girlfriend already, see if hes a good guy, see if he might like you back, Then, you wanna slowly start conversations with him, maybe compliment him, maybe ask for help on a project or assignment, if you guys have passing periods or hallways you pass each other him, just do a soft wave, and a gentle smile. Yeah, friends can be a bit annoying when u want privacy, so u could always tell them nicely to give u a second, and if they don't u privacy u need, then that gets to a "toxic friend". But just start with small steps and get him to notice u, maybe become friends, etc.