Ive been here kinda. We only have the 1 child but my wifes job involves her bringing a lot of work home so my whole life was work and single parent a lot of the time because she had to get work done.

The only thing I can suggest is making the 5yo feel like they are contributing, asking them for their help and praising them when they do. My Daughter was only 4 but "Daddy need to cook dinner, so I need your help I cant cook dinner and pick up the toys so can you pick up the toys while I cook dinner please? If you can get the 5yo thinking they are your AMAZING LITTLE HELPER and gamify getting them to be helpful it might help.

I remember my Daughter giving up the naps, yeah thats a trying phase. Trying to get a big physical morning in so they would be more inclined to nap was one of my key strategies, especially if I knew they didnt sleep super well the night before or were up early.

I don't really have much to say that hasn't been said already, so just know that I feel for you man. That's a really tough rap; you can do it, though - you are doing it and it is so so worth it.

When you look back, you won't remember the crap - but the few precious diamond moments you can snatch from it all will shine.

There's sometimes a lot of benefit to be had with throwing caution to the wind and blowing the routine and rules out the window. So stick Bluey on all Saturday and cuddle up with the kids with a hot chocolate. Sundays are for worries, after all.

Mate, that sounds absolutely exhausting. You're an absolute champion for keeping that up. These days I'd crumple at 75% of that!

If you're in a fortunate enough situation where there's a grandparent/uncle/auntie/close friend or whatever that may be available to help out, now might be a good time to ask for a little help if you can.

My brother was in a similar patch a few years back, and me and my dad went over quite a few times, cleaned the house, fixed a bunch of broken stuff, went food shopping, made them lunch and dinners for a few days to go in the freezer and kept an eye on the kids for a while so they could get on with some other stuff. Now the kids are a bit older and my dad's retired, he goes over several times a month for the same thing.