manage my anger

Let's be honest anger is hard to let go in same cases. Every time I think it's gone it reappears it's ugly head. My daughter keeps telling me more of what he put her through. I understand that he is mentally ill but still he was suppose to be her dad, her protector not the one who puts her through emotional and physical pain. All his lies, all the pain he caused still hurts, I can deal with what he put me through but my daughter is a different story. I know I don't trust like I use to, I just don't think I could ever do that. He showed me a different side of reality. I am not saying that I can't trust I just look at people differently now. I know that I will never know someone completely.