What support have you had for the financial problem and is it a route that suits you and your OH in order to clear the problem even if that is long-term? [no need to share but have you sat down with him and talked about this on paper with a Professional Advisor]? Maybe ask for a longer period of time than what has been suggested if this isn't helping the over-all problem?
Shock can cause us to doubt our place in Life. Maybe make a list of what needs doing this weekend, through next week and the next and put to one side anything else. Are you coping with the housework for example, is there anything that can be put to one side so that basics are covered, i.e. laundry, washing up; eat out if necessary - buy 2 x 1 ready meals and look for end of line offers to put into the freezer.
That way you don't have to worry about what to eat next.
If you have a large table spread out what is required so that it doesn't look such a large task. Paper work to be filed in one pile, phone calls on another and tick off as they are done.
When I had a breakdown I couldn't get out of bed .........

and when I did, didn't wash or get dressed: sat. For hours. Staring at the walls.