This will sound crazy but you are looking at what you need, you need to look at what you have and cut your cloth accordingly.
Start with the debts. Are they credit card companies? They can actually be quite helpful, Write out a full budget as you have done above but start with 'priority debts'.
So you NEED to pay your mortgage, gas, electricity, water, TV licence. If you can reduce these good, but if not keep paying them. Ask your mortgage provider for a payment holiday.
All the water companies and some other providers of utilities have funds to help people pay less / write off some of your debt.
OK so once priority debts / outgoings are sorted look at your other debt. As I said cc companies can be helpful, partly because you have the power, they can take you to court and get a CCJ but that costs them money and the court will make an order for you to pay a small amount each month. This costs the company so they might as well make an arrangement with you directly.
If they do get a CCJ and you don't pay then they can send bailiffs round, but they cannot enter your home if you are 'vulnerable', the CAB give excellent advice and it's worth reading their web page but basically your DH is classed as 'vulnerable' as are any children.
Do you need two cars if only one of you is working? If you will need 2 in the near future then take one off the road and get a refund on the tax.
Do you need contract phones? PAYG might be cheaper, also if you have been with a provider for a while you might get a discount. I pay half of what you do for unlimited calls and texts and more data than I ever use.
Sign up to a cashback site and use that to shop around for better deals for everything. You can get some cashback for free eg sign up with top cash back, then click through to 'compare energy' to see if there is a better deal, if there is then you get up to £44 for changing.
Oh and you can come back from this, many people are struggling right now which means more companies are looking to help.