its a lot to sort!
I began after my diagnosis of autism at age 68 by figuring out what things I was forcing myself to do to please others, and figuring out what things I "had to do" were hardest. Then I had to figure out "work arounds" or substitutes/ alternatives for the things that gave me trouble.
Example: family parties were tough, so instead of participating, I could substitute a separate quiet time with the celebrating person, or a phone call, a card, or letter and a gift if needed.
We could have a picnic or quiet take out dinner at home instead of big deal fancy restaurant in a crowded situation, etc etc when the other party agreed.
Cookout in the back yard instead of fancy dinner party, etc etc. There are probably a hundred "work arounds" for every stressor. finding help with those struggles you simply can't cope with (pay somebody else to cook, clean the stove and the toilet ) or trade services, if you are good at something barter with somebody else who has skills you need.
Change your wardrobe to simple clothing that is not difficult or uncomfortable to wear. Lots of nice clothing today has "ease of comfort" factor built in.
Instead of taking showers, take a bath in the sink, one quarter of your body at a time, many people in the world have never seen a bathtub or a shower.
Use different tools or skills to do the things that are hardest in a different way. If you hate to cook, use pre-prepared meals. No guilt!
Start with the hardest and most distressing things first, one at a time. Little by little your life will even out and every day things may become easier over time.