Hi and welcome to the forum.
Don't despair, there will be a solution somewhere for you!
Do you have any equity in your house? If not, then you could declare bankruptcy as your house won't be taken if it is negative equity.
It would be a clean start for both of you, you may have to make payments for three years, but it depends on how much disposable income you would have after priority payments (bearing in mind that you would not be paying creditors).
I would visit
www.iva.com for a list of reputable companies. Ring one or two, and they will advise you of all the options available to you and the best way forward for your circumstances.
We are here for any support and questions you may have, so don't be afraid to ask whatever you want.
Good luck.