my Distraction..</3

Guy's help me please!!..How to move on with someone who doesn't love you back?
there's this guy in my school that i like for almost a year now...i tried to do everything just for him to notice me..but still...he just won't....and i think im going to give up already...because i'm sick of wasting my time!!..i can't concentrate on my studies because of him...i get low grades beacuse of him...i consider him as my distraction not an inspiration..=(...so please...help me..=(..he makes me miserable,desperate,depressed..i need advices please..on how to move on..='(..</3