We all need to remember we are just human beings. We often beat ourselves up for what we did to our children, not being the best parent etc. I know for myself, i have to remind myself i am only human i am not perfect. Forgiving ourselves is the first step to healing. I do believe that it is important for you to not allow your daughter to treat you the way she had been. You do not deserve that sort of treatment from your daughter even if the childhood was not the best. She is grown up and need to act like it. Howver, she may not get his until she starts exploring who she and why she behaves the way she does. Good luck