✤.J.
You said at the end exactly what I was thinking throughout reading your post: you're doing it all by yourself now anyway so it likely won't be much difference.
I know what you mean about being scared anyway, though. It's a huge life-changing thing to begin the separation process, but you know you're doing the right thing.
If you have friends in the area who are the type to offer help, even just a simple, "Let me take the babies for a couple of hours while you grocery shop" take them up on it for sure! Other than that, just take it day by day. It will get easier as you & the kids get into a good routine. **Hugs!!**