Make sure you do both, put reasonable distance between the abuser and yourself. It may be necessary to keep her at a distance. I recommend a counselor to help with forgiveness. This will help you heal. The therapist should be able to help you understand what forgiveness is and is not. That will be important so you don't get trapped in any more abuse or guilt. The forgiveness is for your health not hers. Keep that in mind. Still feeling hurt or angry does not mean you have failed to forgive by the way, those are processes.