What a tough situation!
Just know that you are being held gently by the SR community. We understand and we are here to support you emotionally.
Deciding to stay or go is deeply personal. Remember that "everyone" who is telling you to stay because it is better for the kids don't know your situation like you do.
Trust yourself and your instincts. Trust you!
I hear you are not getting support from mom and dad. They might not be the best bet to stay with.
If you could get AH out, could you get a roomie to help financially? Could you get a part time job? What are your options?