I have two siblings that I'm close to, but I have a sour relationship with both of my parents, more so my mom as she was the physical aspect of it. When I started therapy, I was able to bring up the situation of how my mom was put in jail for child abuse + lost custody without getting emotional, but before whenever I opened up about it I would have a hard time talking about it. 

The trauma happened when I was 8 or 9, and she lost custody for good. She has apologized for it before, but I can't bring myself to forgive her. It's like she changed my life in the worse way possible, and I am still unable to get rid of this baggage. Help?