Keep on documenting, do not stop. Even though you are D. Keep all receipts and annotate those statements. If you can go back and annotate previous statements. I do help others with D finances and I know absolutely how important knowing the numbers and producing summary schedules can be. If xWW spends beyond the permitted limits then you can recover (didn't say you want to) this stuff is leverage. There are plenty of online tools for Fins. Use them. Have two new accounts set up, one for bills and one for debts and loans to repay. Have a credit card for personal use and one for kid use. Keep things clean and attach receipts to the back of the cards.
Your WW is rewriting history in this.
You must get WW off your accounts so your fins are your own, the longer you leave this the worse it will be.
Please don't have third parties run your fins for you, big boy pants and do so yourself with facts. In emails or texts. Two squabbling children telling their mommies is going to escalate issues. This is a gentle V 2x4 as this stuff is tough, kids raising kids will give real problems. Time to become the rock for your kids if xWH is the hard place. Time to be a stable force for those kids. Time for love and hugs.
Emotional maturity on another thing, your kids are important if WW doesn't understand the schedule she is setting you up. When things go bad she may say 'you knew I didn't understand'.
If it were me then I would say 'WW in order for us to be clear on schedules, I have set up an online calender for kids schedules. Here is the log in. I have filled in the first two/three/four months of items as I see it. Please can you put appointments on there that you know of. Dentist, doctor, play dates.....
I want this to work for us xWW and to be calm so we can coparent easily. In future I want you and I to deal directly."
This is easier if you have a structure.
V
Freedom is just another word for nothing left to loose. V 64, WAW