Thanks everyone, I’ll try to make some adjustments you advised on (sling, food, cleaning, getting husband to help with baby).
In terms of cooking I will probably struggle to stay in good health, breastfeed, be on my feet all day running around on just tinned soup, sandwiches and beans on toast for months. I cook simple things like salmon and small potatoes skin on into pressure cooker, wash cherry tomatoes/peppers - lunch sorted, I just do it in a few goes in between other things.
Cleaning is more to do with tiding up after kids: watermelon juice everywhere on the table, chairs, floor after kids had it for snack. Wiping table and floor after they did some artwork which involved paint, getting their Lego, toys out of my way so I don’t tip over carrying the baby.
Baby wouldn’t sleep for more than 10 min in one go after lunchtime, wakes up tired and I’m back to another hour of rocking/feeding/walking around just to get 10 more minutes of sleep. And unlike older kids this one wouldn’t settle for the night until very late (9:30pm on average) and awake 6:30-7am. I start bedtime routine at 6pm and by the time 9:30pm comes I’m ready to walk out of the window. Baby just screams in dads hands in the evening, the second I hand baby over to DH baby starts screaming. I wish I could just have 30 min in peace in the evening to vent, that’s how it worked well when older kids were babies (off to bed 7pm till morning). I cosleep and night feeds don’t bother me much.
Husband thinks that if he doesn’t have sex at least every other day (better 2x times a day) his devices will fall apart and blames me for this, telling me all the time how many days it was since he had sex and years since he had proper sex;))) and every time he asks if I want to put one of my office dresses on for him before sex. I usually say no as trying it hard to just stay awake at 10pm and lift my head off the bed.