Hi,
I am sorry for the bad childhood your parents put you through. I think it's already a good first step that you are seeing a Therapist. There is a lot of videos on YouTube about childhood traumas or you can make some research on google. This has helped me a lot. Take care of yourself, relaxation helps a lot to manage emotions. If you can try to meditate and practice yoga or dancing to connect with your body.
The most important is your willingness to improve your life. Good luck