I think it depends on how much you invested in the relationship, the more I invested the longer it took to get over. I hope you find that you can move on soon, but cutting off communication for good is a sensible move otherwise you'll just keep picking at the scab and reopening the wounds. While it is only natural to take some time to grieve and remember the good times don't lose sight of the reasons this relationship ended. Maybe you need to create some good memories that don't involve him, if you can, get out and do something exciting and new, something that you've always wanted to do.

Things will get better, but how long that takes is up to you. Sorry, I know that's not very helpful. Be strong.