((((((Beth)))))) This all hits a little too close to home for me to have anything useful to offer you.
But let me offer this: People whose issues with their parents are minimal, won't have anything useful from their own experience to offer you. People whose issues with their parents are significant, will have too much of an overlay from their own experience to have anything useful to offer you. 
My sympathy and support go out to you. But on a practical level, unfortunately, I think you need to either find the answer in your own heart or talk to a professional.
Speed comes from what you put behind you. - Judi Ketteler