Do u have any annual leave? Could u take a few days off to clear the backlog and set up some kind of system to get everything under control? Cool a stack of dinners for the freezer etc? Is it worthwhile looking at getting a cleaner once a fortnight? We pay $70 for 3 hrs a fortnight and it saves our sanity and gives us precious family time?
It's hard work juggling it all, best advice is work out what the non
Negotiables are and get them done and try not to fret about the rest.
With regard to the girls interrupting your sleep, would putting a matress in your room to give you all more room help?