You have an awful lot on your plate to digest right now. Take some time out for you (and perhaps your girls too). If at all possible plan some things for this coming weekend that'll get you (and your girls) out of the house....go do something you know will be fun, enjoy yourself and blow off some steam. Heck take the girls ice-skating or bowling....or even cycling (if the weather is decent enough)....just get out and go have some fun!!!
I'm sending you lots of hugs and positive thoughts!!