First prioritise your debts.
Rent/mortgage, electric/gas are your first priorities.
Groceries come next - look at where you can cut back - make stuff from scratch instead of buying ready prepared stuff.
Do you buy baby/toddler food? stop buy ingredients and make it yourself, lots lots cheaper.
Look at buying store brand instead of brand name - it doesn't have to be forever - just until you get yourself out of debt.
what cable provider? which package? can you downgrade for the time being?
£60 phone bill is a lot - can you cut the calls down for the time being?
Make a list of your creditors.
Make a budget sheet. - I'll draw up a draft to send you.
Once you see what you have left write to each creditor.
Ask that they freeze the interest, but that the account can't be used - so you can't spend more.
Then offer to pay a percentage to each creditor each month - it might only 2-5%.
But in the UK they have to accept your offer (even if it is only £1 per week) to pay.
If they refuse your offer - they are agreeing to write off your debts.
By succeeding in digging yourself out of debt you actually boost your credit rating - strange I know, but what it says is that you acknowledge your debts and that you make the effort to clear them.
Gimme 10 to draw up a draft budget sheet.