have some days where you let them be kids.
Today my son has watched whatever the F he liked on tele, played in the garden, done some gardening with me, and we read a couple of books.
Tommorow we will do some "school work" reading/writing/maths... for prehaps 30 minutes or so. Then we will have some downtime/tele/let him play on his own, before maybe or maybe not revisiting some school work.
When we don't do any school work I don't beat myself up. We can only do our best and everyone is feeling the same way.
My DS spends time at his father's house, and I was feeling quite inadequate when I kept seeing things posted on the school newsletter and such like, of my DS doing great things with his fathers family, until as only a 6 year old could innocently tell you "mummy, they made me sit and do 'X Y Z' activity as pretend'
Turns out he hadn't been doing half the stuff that they had been making out, but taking photos to make it look like he had.
I personally think DS is getting just as much 'education' by letting him sometimes take the lead (prehaps look up 'unschooling' for inspiration)
To add, my DS (6) also gets up at around 6am. I send him back to his room to play/put tele on until I'm ready to get up (anything between 7am - 9am) and have absolutely no guilt about this.
We have also been enjoying doing 'science' experiments- ie paper mache volcano and making it explode (bi carb soda, water & washing up liquid) so prehaps looking outside the box, rather than the "sit down and go through the motions" method, that my DS hates and ends up us all being stressed.
Finally, you're not alone OP. This is not easy. So go easy and try and enjoy!
(And when you're not enjoying then just don't sweat it! I'm 110% not made for homeschooling. All we can do is our best!)