Those are the days. I lived about 500 yards from the first tee, so when I was a junior I used to play 2 or 3 times a day, just going home to be fed and watered.
Used to get 54 holes in sometimes on a sunday in mid-summer. On the first tee at 8-ish for a practice round, play a team match in the afternoon, then play the Sunday medal when we got back. If I play 18 now I need a few sausage sarnies and several pints before I feel human again
And the other big difference is I can hit a 3 iron further than I used to hit my 3 wood then, but I'm about 10 shots worse at the end. Practice, practice, practice as me old coach used to say !