I am having issue with my mom and don't know what to do.

I have all these feelings of animosity towards my mother for the way that she and my father abused me in my childhood. I thought that I had dealt with a lot of it, but these memories have been coming up and I am appalled at how badly my sister and I were treated. I am so angry....furious....enraged. I don't know how to act as my mother is coming for a visit tomorrow. Do I say anything? Normally I don't and if I do she just says "I did the best I could". I know she did, but it does not make it hurt any less. Any thoughts? Have a nice evening.