what do I do

So there's this guy that I've liked for several years now. He doesn't know who I am but knows my name and knows that I like him because our brothers are friends. He's a year older and very popular. He's a junior now and I'm a sophomore. He is crazy good at football and has colleges after him all the time. He's transferring to another school for senior year and I have no idea how to feel. He has never shown any interest in me but for 5 years I've been pining after him. How do I make myself unlike him or get him to notice me.