How to leave with kids

[WillSheBeMyLast]

Ok. I'm ready to go but he doesn't want me to. He knows that's my plan but he keeps acting as if it's new information and he has no idea about what is going on. Massive back story obvs, I'll give as much info without making it a novel.

1. He's been cheating on me since day one.
2. We have two kids
3. Not married but own a house together
4. Been together for about 17 yrs.

Anyway, I'm ready but scared. What do I need to do? Anything I need to know? I've got some savings, going to rent as probably wouldn't qualify for a mortgage.
My only issue is he is a narcissist, he will make his kids suffer to make me do what he wants. I worried about the kids and that's why I have stayed so long but I can't continue like this.
A few questions;

When you left what did you take?
How did you agree on who had the kids?
How did you tell family etc?

It's such a weird situation because he doesn't want it to happen but I'm dreading spending any more time with him.

Hope this makes sense.

You can’t stay because of how he may manipulate the children. His bed behaviour belongs to him.

How old are the children?
If you aren't at physical risk Id get the new place set up first.

Beds, bedding, chest of drawers for each person
If everyone has their own devices to watch TV already I'd leave the living room last to sort
Crockery, cutlery, toaster, kettle microwave, fridge freezer, table & chairs (even if of the camping variety)
Toothbrushes, toiletries, towels

I'd 'declutter' what you can from your current house and move it to the new one. Then charity shop / friends & family for other bits.

Don't tell him you have a place until ready to walk out to the new place.

Dc's ages is important... Will they want to see him?.