It sounds to me as if you already know the truth, but that you aren't ready to do anything about it yet. That is your decision.
But remember, the day will come when you get so tired of living as you are now that you WILL want to leave. It's best to start preparing for it now, even if you aren't ready to actually leave. Being prepared doesn't mean you are going to do it, it just means you are ready.
Think about your future employability, educating yourself or getting some type of qualification, even if all you do is research what it would take.
Think about finances, educate yourself as to what benefits you may qualify for & how to claim them, what your H would be liable for in maintenance & how to go about that. Consider seeing a solicitor for a free consultation.
Think about living in peace without him. Where would you want that to be? What is the cost of living there?
Think about starting a 'fuck you fund'. That's money you stash away to enable you to get away, even if all you can do is hide a few £ a week. Just having enough for a couple of nights in a hotel can make you feel more secure.
I've been there. I did it. You can, too.