Hey, lizatola. It took many, many years for me to push through the negative stuff I had with my dad. I came to be happy in my own skin. Don't really know how that came about. Being active in an amazing Al-Anon group opened a lot of doors in my head. I also journalled in longhand. Somehow the physical writing unlocked things that I had been holding on to a long, long time. Name it and claim it, you know?
Anyway, as I came to feel more peaceful, a lot of my resentment faded.
Dunno if that helps. Peace.