No need to bump yourself off sweetheart, just keep taking steps towards getting out. In time you'll look back and think 'my life is fucking great without that asshole in it, I can't believe I was contemplating silly things when all I had to do, was leave'.
Things feel bleak with those souls sucking leaches about. But once you pluck him off, you'll be fine.
You work right? Could you afford to go stay at a hotel/hostel whilst you process things? Cancel the direct debits before you leave, then you have your own money coming in.
Is it just the dog preventing that?
I thought you mentioned kids? Maybe I was wrong.
What about a room on spareroom? Some people are dog friendly. Just be sure to go with a women only household incase the guys are predators and take advantage of vulnerability.
What about your workplace? If you tell them could they help? Maybe someone there has a property somewhere you could stay in? If my work colleague was going through what you were and I could help, I would.
There's nothing to be embarrassed about.
Just, again, it's OK to say 'I appreciate it but I dont want to stay with men' if needs be. And, only stay until your housing opportunity comes up.
Put some feelers out.
Maybe anyone else you see walking a dog on walks you could ask them if they could take the dog whilst you escape. Again, a woman or a couple ideally. Just explain the situation. That you're fleeing abuse and love your dog and don't want to lose her and wondered, seen as they have a dog that likes yours, if they could take her for a while. Reassure them you'll pay any costs.