Oh dear - having a go at you isn't going to help as you probably feel so miserable and afraid right now.
Firstly you need to sit down with your hubby and have a very frank and honest talk about bills and other expenditure and write down a clear list of all bills per month, how much they are and when they come out of your bank account - you then need to prove to him that you're going to do your damned hardest to resolve this. Cut up the cards infront of him. Contact your creditors and explain the situation (some may cut the interest so the payments you're making aren't just scraping the interest off but leaving the debt). Contact Citizens Advice and go onto the Martin Lewis moneyexpert site.
Do you work? If so can you manage to do any overtime? Even a little helps.
Join a cashback site like Quidco so that you can get some cashback on certain things.
Have a big declutter and sell anything you don't use/need/want.
Alter your monthly groceries - bulk buy things like washing powder, cleaning products, teabags etc as it works out cheaper and get some recipes on easy, cheap, home-cooked meals that only take around 25 minutes to do including prep and cooking, go a brand lower etc - I often opt for the own brand washing up liquid, conditioner, disinfectant, bread etc etc.
6 months does seem very optimistic especially if your credit score is damaged. I currently owe £3,000 due to having massive vet bills to save a critically ill puppy that I took on and even though I have a decently paid job and am doing quite a lot of overtime, it's still going to take me a year at least to clear it (but the very healthy bundle of fur makes me not regret my debt but I'm also looking forward to having it paid off and gone as interest rates are silly and paying the minimum really doesn't work which is why it's worth you seeing if you can have the interest frozen.
Good luck and don't lose hope - your hubby will be livid at you right now and he'll be extremely worried but if he sees you making a real effort and if he really loves you, then you can get through this together and learn from it and then enjoy your marriage again. x