Needs a big push to become better

My love of my life of 1 year and 11 months and I got into our last argument and ended things off. I had/have a bad addiction to porn and it has ruin my relationship I had trouble in the pass with porn and it became more manageable. I lost myself around a year and 2 months into the relationship and it became worse. I hurt her so much and in so many ways. Porn was a major factor in our relationship ending. I want to better myself not just for her but for myself and I truly want to be the best version of myself. Even if we never meet again or try again I will never hurt any other women ever again while being the best version of myself I could ever be.