Please don't think you must get rid of everything! My Mom made a,similar move and was able to bring her favorite dresser and chest of drawers, bed, recliner, combined desk and China curio cabinet. We also decorated with her favorite mirrors pictures and bric a brac. We downsized her wardrobe and jewelry keeping the favorites. She gave many pieces of jewelry and keepsakes to kids and grandkids.

I am doing tha downsizing at 73. What my kids and kin don't want go to our local Buy Nothing group, where people are very appreciative.

The hardest is photos- we are going through and putting our favorites on a thumb drive and on our wall picture frame where they rotate constantly. The hardest is to figure out is what to do with all the plants and decor in many gardens. These are gradually being given to my girls and other gardener friends.
It gets easier as I go, realizing someone else can continue to enjoy. My sister in law has been unable to let herself do this. When she passes I fear her impatient daughter will dump it all - even though there are some lovely things.

SueEllen-
You have been so very brave about this, straightforward and not in denial.
You might think of this as a gift you are giving to your future self.
Right now you are very clear minded and can make decisions that you may not be able to make later, and you can be the one who makes them for yourself.

Our home environment is an extension of our mind, and with age and memory loss we become much more dependent on our environment to "think" for us, to hold us together.
You need to create an environment, a small, simple home/room which will help you function as your mind becomes less flexible.
You need to make this change while you can, and learn to live there while you can adapt and adjust.
This will involve loss for today, but it will be a gift to yourself later.

(These are just my thoughts. Don't take them if they aren't for you.
I'm still struggling to make my home as simple as possible while I can.)