Thank you for writing about this. Many people have had abuse in their life, and learning how to manage it will be important for them and you. Here are my thoughts.
When the psyche holds back uncomfortable memories the suppression (deliberately holding back) or repression (unconsciously holding back) takes a lot of our emotional energy. The fact that some of these memories are coming through is a very good thing because it means that there is a readiness for you to now cope with these thoughts.
I would encourage you to find a therapist trained in EMDR:
Eye Movement Desensitization and Reprocessing. This form of therapy is specifically designed to deal with trauma, and the memories of being abused fall into that category. Something happened to you that shouldn’t have and there was a type of helplessness that was felt. Therapists with this additional level of training should be able to help you begin to move toward it.
As you enter therapy I would strongly encourage you to interview a few therapists, and to include a male and female with the same EMDR training. While the credential is important, your comfort with the therapist is the most essential ingredient.