Do you have access to martial arts or self-defense classes? That helped me immensely in dealing with my PTSD-related fear of being attacked because I learned how to defend myself if need be, how to get out of common grabs/holds, and even how to communicate with body language and tone of voice that I'm not someone you want to mess with. I still worry that someone might attack me, but I feel much safer now because I know I know how to respond.