Healing from heartbreak is a long and tedious road and everyone heals in a different time frame.
Have you considered seeing a psychologist?
The way I have come so far (from a similar situation) in such a short time is to talk, talk and talk.
The memories are always going to be in your head and they pop in at really bad times (in my opinion), have you tired doing something that you have never done before? Get out and see the world from a different view point.. for me it was yoga but it can be anything at all.