I feel you on the financial issues being the crux of your strife. I feel like this has been the primary source of tension between my W and me. With each new child, it only got worse and her fixation on needing to make more money would escalate.
Just keep doing what you are doing - getting back to yourself and dive headlong into GAL. Do not take the bait if it seems like an argument over finances is imminent when you interact w/H. Detach and let go of him for now.
M: 40 W: 37 T: 20 MR: 13 S13, S9, S4 BD: 1/29/18 Sep: 4/23/18 (I moved out) 8/24/18 I come home, she moves out
If you want to get out of the hole, drop the shovel.