Very very sorry for your difficulties. I was a victim of violent crime. In 1982, I was kidnapped and held for a time.
In addition to regular therapy, I highly recommend getting specific therapy to assess if you have PTSD. And if you do have PTSD, to get specific treatment for that.
It is different. PTSD re-wires the brain. It needs a specific kind of work to resolve.
If your therapist agrees it is a good idea, you might want to look into stress management, generally. And also stress reduction. You might want to look into meditation, Hatha Yoga relaxation techniques and such. "The PTSD Handbook" is a professional resource tool for those with PTSD. It includes meditation and Hatha Yoga relaxation techniques. (It is recommended only for use in conjunction with counseling from a therapist).
If your therapist agrees it is a good idea, you might want to think about professional self-defense classes from a martial arts teacher. It is not only learning the physical techniques that can keep you safe, martial arts is an entire culture. Being around that culture can give you confidence in many ways.
But, you really do have to clear that with a therapist. The thought of engaging in martial art strategies, may only trigger you further. The therapist has to review any work in that area.
Online you can find many articles (and, I am sure, many books) by law enforcement professionals, about the dos and don'ts of how to keep yourself safe, what situations and environments to avoid and other safety tips.
Here's one article I found:
You can Google:
"A Former Police Chief Shares 10 Must-Know Safety Tips for Women"
for myself, as a violent crime victim, I have learned some martial arts. I do various things to keep the home safe. And I learned various things that folks would otherwise not know.
For example, keeping your car windows up when you approach an intersection, significantly reduces your risk of a car-jacking. If a perpetrator can stick a gun through the window, quickly, it maximizes his chances of success. Just a side note…about some life hacks that can keep us safe that we otherwise would not think about.
I learned many of these things in counseling and in research to help me endure the consequences of having been kidnapped.
Being kidnapped was a full blown nightmare. I had strong PTSD reactions for at least 8 years. And some to this day. But what I have learned in therapy and through research has definitely made a huge difference.