Can you get DDs clothes from Vinted? Also sell anything she's outgrown?
I know it's hard but I'd limit takeaways - pizza is one of the worst value as it's not objectively any better than a favourite supermarket one (we get Crosta & Mollica from Costco, not the cheapest but really nice) and can be £££s especially if it's a regular purchase.
Can you at least limit the frequency, make the best use of offers and buy a large rather than 2 medium or whichever way works out cheaper and try and find a supermarket one that she will eat? If it's Domino's Aldi have some good dupes with similar packaging. Or is collection cheaper - sometimes they have collection only offers.
On the matter of the zero based budgeting, can you get all your money paid into one account, then set up standing orders on a set date after your DH has been paid to go to a separate bills account, put money aside for savings for annual and irregular expenses as part of your zero based budgeting (an account with pots will help with this), payments to the credit cards, and also to spending accounts, perhaps one for food/petrol and another for non essentials?
It might take a bit of setting up, or even a frugal couple of weeks while you receive money but not touch it while you wait for the end of the month, but it will simulate a single monthly payment that could help with budgeting.
Also, if you haven't done so already, can you transfer any of the CCs to 0% deals so you get out of debt faster.
But without any amounts, it's hard to say if it's just a matter of priorities or if your outgoings exceed your income and that's why you're in debt, so you need to really review your budget to check whether it's just a matter of cutting back a bit, or if you need a more formal solution. Have a look at Moneysaving Expert for a comprehensive get out of debt guide.
https://www.moneysavingexpert.com/loans/debt-help-plan/