My ex terrorised me so much, didn't allow me out for months, then whenever we did go out, shite driving, picking issues with me etc, and the general lunacy of the place we were living that I developed agoraphobia.
It took coming home to sort that out. That and some hefty doses of rescue remedy! :)
Lovey, you can do this. I know how scary it is, but if you dig deep, get help from the Dr, you can do it.
I knew ADs would be potentially a way forward, but I don't have much success with them, so wanted to try something else. Rescue Remedy helped.
Main thing is to get free of your bully, and commit to getting yourself free of this irrational fear.
Get rid of him, and many of your issues will start to dissipate.