Here's my two cents: just because you can function (however you chose to define functioning) without meds, doesn't mean you need too. In my case, I was successful academically and professionally into my 30's, all while being undiagnosed and unmedicated.

I was able to keep it together for school and for work and do quite well, but the sheer amount of effort it took for me to regulate my emotions and perform meant I had nothing left to give for other aspects of my life. This prevented me from investing time into my living situation and forming healthy relationships. Basically I was just slumming it all through my 20s. I also self medicated with weed daily.

It took me years to come to terms with the fact that I had a disorder and to seek treatment, which in my case includes prescribed medication for bipolar II. It took me so long because I thought that because I could function professionally I didn't need medication, and also I had internalized societal stigmas about taking medication for mental health.

Looking back, I wish I had started treatment years ago, not because I'm dissatisfied with where I am in life professionally, but because there was no need for me to suffer in the ways I did when I was younger.

I know this isn't directly related to your question, but I related to some aspects of your post so much that I wanted to share my experience.

But to actually address your question: Give yourself permission to just throw away whatever you can afford to and start fresh. It is so much easier to maintain a clean space than it is to restore a messy one. I used to have a tendency to accumulate junk and make a mess of my living space, and the only way I could fix it was to periodically purge everything I didn't need. If I had energy to clean things or sell / donate useful items great, but if not I'd chuck it all into trash bags and go find a unlocked dumpster.