These thoughts will come and go, Ox, and, as you settle in to the IVA, or life after a F&F IVA, they will diminish.
Many of us have young children and houses to worry about, but we mustn't let that, natural, worrying interfere with providing. We have to strike a balance. I have just (literally) become a single parent, in an IVA, with a 6 year old to care for. Yes, I worry, and yes, I will come here to moan and rant, but, at the end of the day, I can only do my best and get the most out of the hand that I have been dealt for the sake of the young'un.
Are you taking meds from your GP yet? They will take a couple of weeks to really kick in and, once you are on your way, all will get better.
My opinions are merely that .. opinions based on experience. Always seek professional advice.
IVA Completed 23rd July 2013 .... C.C. 10th January 2014