Going on a break

We're just not improving. It's been hard since the baby has been born but it's like we're further apart. We both acknowledge we're unhappy & feel alone while in a relationship. 3 kids in the household (2 neither of our children) & so it feels like I take care of the baby by myself as it is. I hope with distance we sort ourselves out however long that's gonna be. He will still see the baby daily but we'll sleep somewhere else. We both don't want to see other people but it still feels like the beginning of the end for other reasons. Working on getting therapy but thats taking time. How do you get to express everything with no judgment?