worrywort Can you please read Why Does He Do That? (by Lundy Bancroft) it will really help you to see that this is not YOU, this is not about you.
You are in a deeply flawed and abusive relationship. The winding the kids up? typical. My Ex used to do it too. I was called an alcoholic every time I had a drink that was not going to lead to having sex with him.
I used to live totally isolated and thousands of miles away from home. I too was in utter despair mostly and unable to leave the house for weeks at a time. I used to smoke cannabis to escape. Others I have since come across in similar situations used to use sleeping tablets. Had I been in a country where alcohol was readily available, and what you could get didn't taste like paint stripper, I would have drunk my way through the whole 3 years. PLEASE, don't berate yourself, you know what you are doing and why. Now you can dig deep and try to get a grip on it. One day at a time. Start with no drinking until the kids are in bed. You can do this.
You are being really honest with yourself, this is great, really helpful to you. It will be hard for you to do, but really, you will recover from this and now that you have opened up to us, and to yourself you have started on your journey to a happier life, whatever that goes on to mean.
Now the sad bit... the situation with your 'H' won't ever improve. You won't be able to sit him down and rationally explain that you would "Rather like a life please, if that is ok with him and doesn't put him out in anyway, thank you very much"
Trust me. I spent 3 years begging my Ex. he listened, but nothing ever changed because it would put HIM out to have to pitch in, step up and take over from you so that you get YOUR own free time.
My Ex was crap in many ways, but he never begrudged me the use of his cars. The situation you describe there is chilling tbh.
Please get the book and read it. Power and Control, why charming men make dangerous loves is also a good book to ready, albeit so scarily accurate it's a little unnerving at times - but helpful.
You also should try to attend the Freedom Programme in time, when you are ready, it will help you to hear the stories of others and see that you are not alone.
You have us here too, never forget that. If I can be on any use either in public forum on in PM, don't hesitate?