I think it's hard for anyone to comment as it sounds like you have a difficult baby. My friend told me how I wouldn't be able to get anything done with a baby which I just didn't find so I think only those who have difficult babies should answer this.
I think it's more a matter of expectations and creative multi tasking tbh. Whilst some babies are objectively easy or difficult, most are perhaps subjective.
Take my first. I'd say she was a really easy baby. But we also used her Moses basket as storage for most of its lifespan because she'd only contact nap. She didn't learn to self settle for sleep until gone 3 (and didn't sleep through till after this). Some people would have put her in the more difficult category, but I thought she was fine because I just used the sling and was able to still do stuff despite contact naps etc. And she did love a kickabout on her playmat which helped.
My second was in a 2hrly feeding programme and had colic for a while, so there was hours of crying every evening, and also only contact napped. But I still only think of her as being average difficulty.
Again, I used the slings a LOT, and I'm not sure I ever missed a meal (when they were babies, toddlers I do all the time as I just don't have time any more).
My tips are:
- my primary rule with my firstborn, was when I thought something was impossible to juggle, I'd ask what I'd do if this was my second, and then find a solution. Desperate for food but baby won't be put down - you might be prepared to go hungry, but your imaginary 3 year old is crying from hunger. Baby asleep on you but your imaginary 2 year old has done a poo in their happy, what do you do etc? I appreciate this is more a frame of mind rather than a solution, but it helps turn 'this is impossible' to 'this is hard but I need to do it' which means you get your own needs met as well. After a while, it becomes second nature more and the imaginary sibling fades away (unless and until you have one for real, lol).
Practically, if using the job, and a sling, use back rings only, on lower heat, and never coook anything that can spit. Stir side on, so you can keep maximum distance away with baby. Preferably have baby side facing in a ring sling so you can cook on the opposite side and use your body as the block.
-if breastfeeding, learn to feed in the sling so that you can cook, pee whatever at the same time.
- get in some easy meals if struggling, that can just be put in the microwave. Veg can be frozen, meat can be already diced etc.
- keep practicing putting them down as one day it will work. Only try when you can lift their arm 3 times and it flop back down first.
-slow cookers give more flexibility over when you cook and eat.
- when they start weaning, use the meal to prepare the next one, and give them the food a couple of bits at a time. When my kids were 6-9m ish, a meal could take at least 45m, which would give me time to clean up and do prep for the next one (and bung stuff in the slow cooker). They are also more likely to eat more if if you give it slowly.
Good luck.