Real talk, has anyone else ever just "gotten good" at golf without a lesson?

I've golfed for 4years now and gotten to the point where I can post a decent round, mid 80s with a few good breaks, but shot 100+ more than I shot under 90. There'd just be times where I'd completely lose my ability to hit a golf ball, be it irons, wedges, putting, or driving, there was always the looming threat of some part of my game just exploding and ruining my ability to play golf.

Over the past 3 weeks I've carded scores of 88, 86, 79, and 86 and am now convinced that I can walk onto any course on any tees, and putt together a respectable round with only a sleeve of golf balls in my pocket.