How do I get over this teacher infatuation?:?

I had this teacher last year who was not only gorgeously beautiful, but was really nice, and was a wonderful teacher. Suddenly, almost a year after I had her I've suddenly become mively infatuated with her and now I can't stop thinking about her, seriously, she's in my head every other second, I walk by her room just to get a glimpse of her, I get the impression she has a bad impression of me, even though there's no proof of that, and I don't want school to end because I can't stand the thought of not seeing her everyday? I also feel depressed and miserable all the time. Its so silly. How do I get over it since its making me feel bad all the time. Also, my teacher doesn't know and I would NEVER tell her.