I really need some advice please help.

There is this girl at my school that i have ,had a crush on since 7th grade. I have never told her,about my feelings for her. I had been in a relationship with one girl that she is some what friends with , but i was not happy with that relationship and her friend is crazy , not to be rude to her .I'm not sure what my crush thinks about me now, but i was very nice to her friend .When i broke up with my crushes friend i told her we are not met for each other and we need to see other people.I have never really have talked to my crush very much, i'm a quiet guy.I always open doors for my crush, when i get the chance to and i also hold doors open for other girls too , when we are getting to our next classes at school .When she drops her pen in class i always try to get it for her. She always says " thanks " to me , while i hold the door open for her as she walks by me .I don't know how to start a conversation with her, i want to get to know her more and start a relationship with her. Its hard for me to start new relationships with girls. As everyone knows its almost summer and that means i will not see my crush again, because we are going to different schools next year sadly. I only have three weeks to get to know her and hopefully become her friend ,than later on ask her out if i'm lucky. What can i say to her to become her friend or what can i do ? How can i make the girl of my dreams fall in love with me ? I don't want the girl of my dreams to slip away from me and have it end like this. I really need some help please.

Thank you

My friend, I have been faced with that same dilemma many times over the years. They say these things get easier with age, but don't believe that for a second. I've fallen back on my friends for advice a lot when i went though this same struggling feeling. I found that the best was to get to know her is to just get it out there. Don't try to rush things because that may cause her to freak out. Take your time and get to know her, find out her likes and dislikes, her favorite music, movies, foods, sports and so on. Don't stalk the poor girl, but learn some things about her and then maybe start a casual conversation with her someday about of the above categories. In time, maybe you'll find yourself talking to her more, and soon hopefully sharing in her likes and dislikes. If and when that happens you're well on your way to a stable, happy relationship. Hope I was of some help, and best of luck to you!