A good way to help you heal from a past relationship is to write a letter to your ex and not actually send it. This letter is one in which you say everything that you want and need to say, in which you let out everything that you are feeling inside. This letter you write for yourself so that you can feel better, not to actually send.
I remember doing this after I broke up with the last guy that I dated before my husband. There were things I wanted to say that he didn’t really need to hear, but I needed to get them off my chest. So I chose a quiet time, put on some classical music and wrote him a vehemently angry letter. There were moments that I felt so angry, I dug the pen into the paper. But I found that a bit of letter writing actually brought up some anger I felt for other past boyfriends as well, so I included them in the letter, too. I didn’t censor anything, and as my anger dropped away, I experienced sadness.
Then, when I was finished, I went to the grill outside and burned the letter and, as far as I was concerned, burnt all the ties that I had to him and to all the others in the past, to allow myself to be free and to start fresh!