<human>: Can you give me the gist of the text in a nutshell?

Sorry if this isn't the correct subreddit, if there is a more appropriate place for this please point me that way.

I (M/19) just got out of a two year relationship about two months ago. She cheated on me for the second time and I had enough so I left. I would consider myself over her, but I'm not going to lie there are times where I want to be back with her and I miss her, but I know I can't go back only to have her hurt me again.

Here's where I need help.
Recently I've really started to really notice feelings for a friend of mine (F/18). I had these feelings during my previous relationship and more than once considering leaving my (then) girlfriend to ask out my friend. I've liked her for a very long time, but I've always been too nervous/embarrassed to say anything.

I finally asked her out the other day and she said she's not looking for a boyfriend right now because she's going to college soon and doesn't want a relationship to distract her while she's in school. I completely understand and respect that, but it wasn't till later (after her response) I realized that I've had feelings for her for almost six years now. I can recall the moment I met her (seven years ago) more clearly than someone I met half an hour ago. I can't get her out of my head and I'm freaking the hell out because I have no one to talk to about this that will take me seriously. (all my friends think I'm joking for some reason)

Should I tell her how long I've has these feelings and how I feel for her? If so, how should I go about that? I have no experience with the whole seduction/landing the date thing. My ex was my first girlfriend and literally fell into my lap.

After typing all this out I think I should meet her somewhere and tell her pretty much exactly what I posted here. I'm just too afraid that if she hears all this at once it's going to scare her away.
<bot>: old relationship went poop all over itself. I notice feelings I've had for a friend (F/18) for a long time and I don't know where to go from there.