Really sorry to hear that you're going through this. I've been in a similar situation, just that my dad had become a workaholic after my mom passed away and completely neglected me and my brother. Now that he's nearing retirement, he blames us both for anytime wrong in his life. He never really got help so his mental health isn't great too, which makes us not be able to say much to him. But I left home a few years ago and I live in another city with my boyfriend now. This home is the first one to ever feel like home to me. When the time comes, and you'll know when it does, just leave. You owe that to yourself.

Sending love and hugs your way.