lol this is kind of a random place to be asking for advice with relationships...
Having my fair share of bad relationships and heart break, my advice to you is just to keep yourself busy. Don't worry about getting a hobby, you can't be doing it 24-7 but you are on the right track though. Just constantly make plans and go out every chance you get, keeping yourself occupied will keep your mind off things and you will find over a period of time your going to be so used to not thinking about it that you will just forget it
Don't let yourself to be sitting at home doing nothing, just keep making plans!!! and you will be fine