We believe you.
I believe you.
I can feel your fear and hurt and desperation coming out from your posts.
I can also feel your overwhelming exhaustion 
The pain of your children saying the cruel lies they're being fed. That must be so, so, bad.
I hope you can feel how much people on here care, and how much posters want to support you. It's not going to make it better, but maybe it will help a tiny bit... Like we're jumping on the other side of that set of scales, nudging the scales up again to be in your favour. Your sick, evil bastard partner is weighing down the other side, and his cruelty is such a heavy thing to hear. But it won't be forever, and he won't be able to recruit others to join him forever. Bit by bit the scales will change, and bit by bit you'll get through this.
Don't think about all the stuff that's happening or could be done to you. Think about each moment as it comes, one step at a time, one moment by one moment, you'll get through it, there is an end to this eventually. There wouldn't be an end in sight without you taking this step towards ending his abuse towards you. Something it was so hard to do, something that shows you as the courageous and amazing woman that you are.
It's ok to collapse sometimes. It's ok to feel like you can't carry on. And it's ok to say 'this is too much'. It's too much to expect yourself to be a ruddy superhero all the time. But remember that this feeling won't last, and you'll be able to carry on a bit more tomorrow, or just let stuff happen around you, let the police and support workers etc do their jobs and be swept along in the right direction for a little bit.
Personally I hate it when people say 'you're so strong' when I want to reply 'no I'm bloody not I just have no choice...', but... You are strong just being able to breathe, being able to get through that minute that you just lived through reading this!
Sometimes, just respiring is enough.