I don't have a limit with golf, I probably have more of a limit with my life outside of golf, and that tends to affect my mood on course. I think I could play every day if I had less external stress on the go.
Depends on how I’m playing. 2-3 nights at the range and 1-2 rounds a week playing like hot garbage burned me out pretty quick. The same amount of time and playing decent and I was fine. I get burned out with frustration rather than the game.