Compartmentalise, Ox. I know I keep harping on about my particular situation to you, Ox but I am trying to show you that there are many of us in worse straights than you are, yet we keep going.
Yes, I, and many others lie awake sometimes wondering why, what if and when. Then, we get up, dust ourselves down and look after the family.
My budget in an IVA was stretched to the limit and now made a thousand time worse by becoming a single parent --- but, none of this filters down to the young 'un. He is happy and loved and in his own little, IVA and worry free compartment.
If the worse come to the worse, there is no debtors prison anymore. I have discovered some benefits will take up some of the shortfall --- you and I ( and all of us) have paid towards these all of our working lives so I am getting some back. As said above, there is always an answer and the consequences are always less dire than those in a run away imagination.
We are off down the park this morning -- the sun is out and we have a frisbee to play with ( and probably lose!). To be blunt ... sod the IVA, sod the world, and enjoy

My opinions are merely that .. opinions based on experience. Always seek professional advice.
IVA Completed 23rd July 2013 .... C.C. 10th January 2014