I need advice on love!!!?

Ok so this is a very long story. Ok.

I really like this girl at my school and I just get this weird feeling in my body when I see her and its just weird. I don't usually talk about my feelings, the only time I do talk of my feelings is if it has to do whether I'm happy or sad or angry besides those feelings I don't express anything else. Well I really like this girl I just can't stop thinking about her. I'm not creepy I don't stalk her or act like a creep. I try to hide as much affection as I can around her I simply stare at her but its more of a glance and I act normal. Well the problem is I really like her but I think she hates me since the year before I asked her to the movies and she really didn't give me an answer because when I asked her it was more as just friends. So I ended up going to the movies with another girl. I feel like I'm not worth having her, she just seems so perfect and I feel like a big imperfection. I just I really like her.. if I were to go out with her it would be a miracle.... and not that I'm negative its just I know it wouldn't happen with me. I want to let her know my feelings so either something works out or I can at least have closure or move on at least. The problem is I used to be a kinda distant friend and this year I'm just a stranger so if I were to tell her I would probably look creepy and she would most likely humiliate me if I did that. I honestly don't know what to do either continue to hide my feelings in or I don't know something else. I really need help... I just I would give anything to be with her. She is pretty but in honesty I don't find her sexually attractive some of my friends say they do but I don't I just like her not her body. She's also incredibly smart and I admire women who care about education. I just I need help I'm so confused. I also hate these strange feelings that won't leave me alone. Please help... :(