Plane Sailing - I have somewhat similar regrets; age 12 in 1985 I was getting into D&D and a friend sold me his 1e Monster Manual & DMG, so that's what I went with, going straight to Unearthed Arcana. Initially all the PCs were either Rangers or Clerics (even in 1e, Clerics were a very powerful class), but soon it was all UA munchkin Drow Clerics and Cavaliers. I coped by running an incredibly tough campaign, but with hindsight I really regret not trying Basic-Expert etc D&D back in the day, it seems a far better balanced system than 1e, especially 1e post UA.