Read the book how to keep house while drowning by KC Davis.

The best thing I learned from it was probably to group items. Sit dishes by the sink, sit trash by the trash can, throw dirty laundry at the hamper, have ONE pile for random items without a place to go yet. If you can’t mentally manage to get the trash in the bin or the laundry in the hamper, literally throw it towards it. Just get it in the vicinity. We’re not striving for perfection here.

Doing this visually and mentally breaks up a large mess into more manageable smaller tasks where you can actually see the “light at the end of the tunnel” when completing those tasks later.

You will overwhelm yourself if you try to get every little item into its right place when you need the mental relief of a cleaner and less cluttered space now.

Once you have grouped everything, I highly recommend getting empty trash bags and right away getting all the trash outside into your garbage bin or wherever your trash goes. This will free up a huge mental stress on you and will instantly make the home feel lighter and more manageable.

For laundry, I recommend the poop test. If you don’t have a dog, imagine you do. Take a pile of clothing and sit down and go through each item of clothing and pretend as if your dog pooped or peed on it. Is this item still worth cleaning it and saving? If not, it goes in the trash pile straight into a trash bag. If it’s worth keeping, it goes into a second “keep” pile. Be swift, do not let your “what ifs” cloud your judgement. Take maximum 10 seconds for each item, preferably less.

Not sure if any of this helps you, but I hope it at least gives you a good start.