OP can't watch because I already don't sleep properly and have flashbacks etc.
I think it's important to share videos like this though because for people who don't know what it means to be abused, they can't imagine. And when they can't imagine..they very often just don't - understandably.
I used to know what mood my mother was in by the way she put the handbrake on as she stopped on our driveway - when I was in the house. I didn't know that this wasn't a normal thing to know until I was in my 30s in therapy. It wasn't - by far - a major issue in therapy, I just mentioned it in passing. You can never, ever relax when that person is around and even when they're not, it's still not necessarily safe.
OP I've heard that the Khiron clinic can be very good. Im not sure if/how it deals with alcohol, but if you were looking for away for the pain to be eased, it might be a place to ask.
I still have nightmares and flashbacks, but significantly less than before. I've had a schema therapy and EMDR. Internal family systems is the more fashionable version of schema therapy, and I've heard it can help too - in combination with EMDR.
And another thing that people may find helpful is polyvagal theory. Sounds complicated but isn't actually. Deb Dana explains it well. When you don't know what safe feels like, or feeling anything at all feels dangerous, this offers a way to slowly, safely understand what your body needs to not be in that constant state of stress/needing to numb.
I'm not suggesting anybody should do any of those things, just that they've been useful for me. I can't ever "recover", but feeling less horrific sometimes is better than constantly horrific.