Time heals all wounds. If, this was a long term relationship it will take more time.You are not alone, if that gives you any comfort, I am going through the same thing. The best way, I have found in these times, is to keep busy in what you are doing - work ,study, concentrate on bettering yourself- exercise - do not dwell on would have - should have and just let go of the down thoughts and think positive that you are worthy of love.