Okay, this came out more blunt and...dunno, I don't really like how it cane out. But the reason is it comes close to something I saw a close one experience so...sorry in advance, maybe it will help you though.

I had a friend like that tbh. Like 1:1 symptoms, except dude didn't travel and had many traumatic experiences. I am going to be blunt. He didn't want help even when asking for it, because even if it was hell, he was in a twisted way comfortable with it.

If you are actually willing to fight, try to check in which hours you can sleep. Really, there's not onky sleeping at night or in the morning - check if you can instead sleep before the night, shift it back (or front in your case). Identify if you have access to enough sunlight in day - if your home is murky, you're gonna feel worse. Also find some motivation anchor. You ain't gonna fix it without actually having the will and anchor. If you manage to do any improvement, accept your success, grit your teeth and continue marching on.

About meds - if your life ie so miserable, it may be better to grab onto them than allow everything bad to swallow you whole.

And if you reallh feel good traveling and are able to live like this, maybe consider nomadic lifestyle? It's going to be tough, but that may be simply price to pay for your overall mental health and who knows, maybe if you feel better you will be able to improve your situation further.