This is your relationship with your real mom. Forgive her, forgive yourself and move on. Become a better person by just being honest. Say what you think and feel. Everyone can see that you feel, so just be honest about it. You can do it, I have faith in you. Have you gone to confront your mom yet? You know she just did to you what she had done to her when she was young. It's up to you to resolve your own issues so you dont continue the family tradition. You can do it, you dont need anyone. You need to empower yourself bu being better than your family. Talk to your dad about it. He seems sensible. Pay him to listen though, he doesnt seem to be a good listener without paying him. Half now and half after he gives you good advice. Please just try.