Don't panic first of all. Unfortunately, there are a lot of people in the same position because of the banks over lending before the recession 
How much equity do you have in your house? Could you take out an additional loan on your mortgage to pay off credit cards/loans so it is cheaper (APR is ridiculously low)? Or shop around for a re-mortgage if you aren't tied in/no early redemption fee?
If you can't do that, see if you can change your credit cards to interest free ones?
Then, if that doesn't work, phone the banks who you have your credit cards, mortgage and loans with. Explain the situation (try to keep calm on the phone - I know it's hard) and see if they can do anything.
Or, you can go to CAB with all your bills, they will ring for you I think.
FWIW, I used to work in a bank up until Feb this year. They can do it, they are just a bit reluctant.
Last minute thought, do you have PPI on loans and credit cards? If your not sure, ring them and maybe get a windfall? Would be nice 
Also, ring gas and electric companies with readings and you may have been over paying. My BIL did this last month, he had £2,000 back because they were taking so much!
If you want any more help, feel free to inbox me. I'm no expert, but have had experience from both perspectives.
I hope you sort it out x