Get a cleaner, and either stop ironing altogether, or buy in an ironing service. Decide whether you want to carry on with your job or not and do what makes you feel better.
He is telling you that he does not value your time. This is compounded by the fact that he would split the household labour 50.50 with you, if you earned equally to him. What a delight he is.
This is making me feel so furious on your behalf OP. Neither of you sit down unless you can both sit down. If he goes to the gym three nights a week, you need to take three nights a week to do something you enjoy doing, outside the home. I know you're knackered, but if it's a really low key yoga class where you can lie with a blanket over you for an hour and snore then do that. You need to find some tiny bit of joy and time for yourself and you're going to have to carve that out, he won't facilitate it.
He needs to be in charge of X, Y, Z, ie food shopping, packed lunches, all the washing up, laundry etc etc etc, he won't offer to help you OP, you're literally there doing the things he doesn't want to do and he's got no impetus to change whatsoever. He's quite alright, thankyou very much. Your situation is incredibly challenging and he's not feeling a pinch of it.
How you can claim to love someone and watch them struggle like this I do not know. I would be doing what others have suggested and kicking off the new regime with a bang, and booking a few days away. Don't leave lists. Don't fill the fridge. Tell him he will have to take this and that date off work as holiday as you will be going away, and leave him to it for a few nights. Nothing will set on fire, make sure you've got a couple of appointments in there too. Your kids need to see you as a person, a human, with feelings and needs and a life, not a domestic appliance that's about to blow a fuse.