So I read through everything here and I picked up on a few things. You mentioned that you were disappointed in the lack of 'help' from the DV advocate. I can tell you that it's possibly because of this:
I'm at a phase in which I want to attempt to leave (again). I've made genuine efforts to leave five times in the past in the five or so years
They have seen women come in and out of their door looking for advice but not ready to move forward. There's a number of reasons for that but you hit on probably one of the more common reasons right here.
It's that I'm afraid of retaliation.
Once I even lived with my mom for about three months, after he threatened me with a gun and grabbed me and lifted me from the ground by my shoulders.
So I want you to look at this:
Cycle of Abuse
I'm sure by now you've figured out that this is not going to get better. It's likely to get worse.
*Sigh*
I have gone through all of this. Not as prolonged but I've gone through it.
It took him choking me unconscious, threatening everyone I loved before I finally got my shit together.
It doesn't have to be like that for you.
My plan was last minute to be sure and was come up with on the fly at work. I had children involved.
If you want a PLAN, go back to the advocate or to the local women's shelter, or even to your GYN and make it clear that you're ready to go and need help making a plan and a safety plan. Get only what you MUST have immediately. Like someone said, make copies of important documents, etc. Then LEAVE. Do it while he isn't home. Anything you need to remove can be removed LATER with a police escort or with the help of a protection order which will require him to be away.
The day I left, I came home from work, made dinner, made up an excuse to take the kids out to go shopping for clothes (it was the beginning of the school year). I called the kids' dad to take them over the weekend (it was a Friday thankfully). I had NOTHING but the clothes on my back and the stuff in my car. I spent the weekend fielding terrible texts from him, till I finally blocked him.
I am not going to say it was easy. It wasn't. But I had spent the last year wanting to leave, with things getting progressively worse. I had said I wanted a divorce over and over for months but I couldn't get him to leave. I had 'left' several times before but wound up going back.
I lost a lot through all of it.
I gained more than I lost.