Absolutely—I feel you 100%! I’ve been in that exact same spiral more times than I care to admit. Last week I opened up what I thought was “Final” terrain mesh… only to realize three hours later I’d never actually applied the fix I swore I did. By the time I tracked down the right version I’d lost half a day, forgotten what color palette I was using, and ended up with three almost-identical files named Terrain_FINAL2_REALTHISONE.obj, Terrain_FINAL2_REALTHISONE_v2.obj, and the legendary Terrain_FINAL2_REALTHISONE_FINAL.obj. 
It’s gotten so bad that I once shipped a build with completely mangled LODs—players saw full-detail trees at 500 meters out, and my framerate collapsed like a house of cards. I spent the next 48 hours in a caffeine-fueled code/texturing frenzy to un-break everything. Solo dev syndrome is real, and it turns the simplest mesh tweak into a full-blown archaeological expedition through your own file structure!