Wrong Fobided Love

I really like my chemistry teacher. He is about 6 years older then me and I can't say that he is the hottest guy I'v seen, he's not that good. But lately he is all I have been able to think of. It's always him. In class I can't keep my eyes of him and since (I'm in a bording school) I see him almost every day. It's so hard, I find myself making excuses to see him too. I try so HARD not to think about him but I give in. So yes I know it is wrong, what I ask you is for some advise, please. Thanks!