Can you tell me how to deal with having depression/post traumatic stress disorder/victim of domestic violence against ex?

Get started... Though a complex ; troubling problem, it's time to get started with a psychiatric assessment. Undoubtedly, some form of psychotherapy will be involved, ; it is quite possible that psychoactive medication will also be appropriate and necessary. Your therapeutic relationships with professionals will be important, so find experts you trust ; with whom you can work these problems through. Godspeed.