Get over it!

get over it

To move on and accept things the way they are; to stop being concerned by or with something that is in the past or can't be changed. Often used as an imperative. Look, I'm going to marry him whether you want me to or not. Get over it! She left you over three years ago, so you really need to get over it already!
See also: get, over

Get over it!

Forget about it and be done with it! (Said to someone who is fretting and stewing over some kind of problem.) Forget about her. She's gone. Get over it!
See also: get, over