Okay. Maybe you should tell your parents. Don't be shy about it. Maybe your mom knows your crush's mom or dad. If you know her (your crush) address, maybe you can send her a letter. If you are to talk to her on the phone, just say straight out, "Listen, I really like you." And then you can go into why you llike her. Girls like sensitive boys who aren't afraid to tell them how they feel.
P.S. Your crush is lucky to have you like her! You're a kind guy, from what I can tell! You go, dude! I wish you well!