I did. I played junior golf as a kid from the age of 5 or so. My dad and later my older brother always gave me advice. I would also get lessons on and off for years in middle school.
My freshman year I was about the 5 th best freshman on my HS team. Towards the end of the year I played a tournament at the woodlands tpc course and shot 108. It just capped off a bad year and reinforced that I wasn't that good at the time. People were dogging me, saying I shouldn't play anymore.
At that point my brother was gone away to college and my dad really didn't have the knowledge to help my swing (was great though at helping mentally actually)
So I made a goal that I was going to make varsity next year and work like crazy to do it. As part of the plan I needed to do something about my swing and it was going to have to be done on my own.
My brain naturally thinks in a math way, so the solution I came up with was "improve probability... Simplify my swing". I worked on removing as many movements in my swing as possible. In a way it may have looked a little dechambeau like. My arms remained pretty inflexible, not crazy but my turn was one piece and generally I shortened up my long and fluid swing. People always liked my swing but it was prettier than functional I guess.
Anyway, I improved considerably and established myself as #1 in my class and I did qualify for a varsity tournament as a sophomore although I generally played #6 that year.
I've gotten together recently with friends from the team ask me how I made such improvement between my sophomore to junior year, but I always felt the difference was from freshman to sophomore year when I made th swing changes.
Incidentally, my swing did not remain as rigid throughout, but that fundamental move, starting my swing in unison is something I always go back to