For me, I try and put all the negative in an imaginary box. I take that box and I bury it and tell myself that it's time to start over.
I try not to ever think about the things that are in that box again. It's buried and over with.
I try and concentrate on now and what I do now. It's much easier for me that way.
I'm wishing you luck in finding a way for you to be able to put things to rest that are in your past and move on.
Take care,
Linda