How to get over a guy?

I started having feelings for a guy who's totally out of my league & doesn't even care about me.
I want to forget about him but the more I try to forget the more I find mysellf thinking about him it's completely out of my control.
It drives me crazy to be 23 and doing this stupid crush game towards someone who doesn't give a damn about me.
How to get over a guy?
Add Opinion