Suffering under massive financial hardship due to the initial divorce decree can be important for your survival and ability to thrive in your new life. Sure, you're going to court, but you had to do this in some form before to get divorced, and if it's absolutely necessary, at least make it as non-confrontational as possible.
During my failing marriage, I got very good at listening for the sirens of destruction (I had done something wrong) and looking for an escape or some heroic journey to fix the problem. Both in my marriage and in this relationship, that was not the right approach.
Anger is energy. Learn to deal with it and channel it towards something you want. Any anger directed back at your ex is anger that will return to you ten-fold when you are in dire need of support. So a prayer. Our kids are a gift. My ex is blameless in her journey forward, and it is in my best interest to support her and the kids with everything I've got.
I wanted her to be something different. She wanted me to be something different. We didn't agree to a separation, we got a divorce. BUT, we tried, and continue to try, to make it a responsible separation. We do our best every day as co-parents.
I believe that our child-centered lifestyle and choices allowed us to let go of the marriage in favor of the kids' welfare. Regardless of who blinked first in the marriage, in the end, it is a mutual decision.
But I am also a learning individual. I can adapt and make changes in my plans and trajectories. So while I was thinking I had lost orbit and was shooting away for some new destination. I may have been only slowing to the gravitational pull of this amazing lady, and learning what her fears and passions were as well.
Get your butt on the trail to recovery and fitness at that same time. And then, if you don't, don't sweat that either. It's easy to be hard on yourself during the holidays. But your own peace of mind, and your own acceptance of yourself, just as you are, is the most important thing you can learn this season.
Live your life as you would like to see your kids living theirs. Show them the adults they can be, by demonstrating the best that you can be. Anything less is a miss. Parenting and co-parenting resources come and go, theories of parenting and how do recover from divorce will change from season to season, but this truth never changes.