Dday - dark means DARK. Like no contact. About anything. You have young children that need go co-parents. There's only so dark that you can go.
Ultimately, "going dark" is a tool, not a solution. It's not like if you have no contact for a week, she's going to jump into your arms. The point is to gain the distance that you need to be able to work on you without worrying so much that she is watching your every move.
I do recommend reducing your contact with her to as low a level as possible. But you still have to do all of the important stuff. That part is easy.