good question about the downsizing - last time we moved house we sorted out all our books. We proudly gave 3 to the book exchange and took 37 boxes with us so had to build bookshelves ..... we're experts!
We "downsized" to a self contained 4m x 2m box on 4wd wheels for 3 years of driving from Malaysia to Scotland and back via China, Scandinavia and Morocco, etc. The PMR caught up with me in Nepal on the way home so was undiagnosed for a few months until we reached Aus. You probably heard the screams.
Most nomads move back and forth in a group to areas they've been to previously. We elected for constant new places independently. Almost daily moving, wondering where to camp, different languages, potable water, food labels unreadable on unrecognisable food, is that pump really for diesel, wondering what the next mechanical or electrical problem is, the cookers broken and spare parts are 1,000km away, a wheel nearly fell off in Spain, the mozzies are biting, visas, borders, money, police, medical, what's Russian for "I need a sim card with internet on my phone". NW Mongolia before we found a welder was 10 km/hr for three days passing one vehicle per day and "we may not get to Europe". All par for the course.
But met the most wonderful people and saw the most fascinating places. Every day an adventure. Biggest achievement is we are still talking to each other .....
How to take everything we needed and nothing we didn't. I think that's what downsizing is.
Trust me (sounds like a pollie). Flu does fly away. And I'm certain the PMR does eventually. The alternative doesn't warrant thinking about. Even if it never goes away knowing it will makes a huge difference. Just a bit of life's roller coaster.
Not sure about the boxes emptying themselves though. Might need a bit of help when you finally get round to it. In the meantime try kicking them. They don't kick back. The pressure to tidy up is in the head. Do what you can when you can, not what you think you should, or worse, what someone else thinks you should. And it somehow all gets done eventually. It really does. One step at a time. And then there's something else to do (bother, I thought I was finished after this task).
Sorry if the above reads like something from Monty Python's Four Yorkshiremen. I'm really not into "my problems are bigger than yours". I think I'm much better off than most and do have lots of real sympathy for you.
I guess just trying to create a bit of "been there done that" cred. Its ok to stop. Nothing bad will happen. Paddle your canoe at your own pace. With the river not against it.
Oops! I forgot about cleaning the snow off the windscreen with bare feet in the Urals! Eh it were tuf!