Hi
what is the split of 1st mortgage and secured loan, and their repayments.
You may be able to do a full remortgage to reduce the outgoings - but only worth doing of it will make a real difference.
If you are desperate to stay on the housing ladder I would suggest down sizeing to release a sizeable chunk of capital to make a good dent in the debt and then work out which debt you should target 1st ( this site can help you make the calculations
http://www.whatsthecost.com/snowball.aspx )
If ownership is not key then sell up & rent.
If you have already got into arrears and are being chased by creditors you may be able to negotiate a 1 off reduced payment yourself. if you don't ask you won't get guaranteed!.
some creditors start offering a reduced settlement quite early in the debt cycle.
hope it helps