I just play for fun but I found I play better under 20 open games.
10 games or less at the same time should be the ideal number for me. I tried more than 80 games and my brain crashed. To improve my game I am reading the book of Richard Palliser, with 1200 chess puzzles. I already did the first 100. (on Mar/31/2022)

Update: Sep/2022. I am thinking to retake the chess puzzles, I want to do the next 100.

Update: Nov/2022. Still...thinking.... I didn't open the book for a LLLLLONGGGGG time. But I feel I am going to re-take those puzzles ... SOON

Update:Jan/2023. I just have 1 pending game, so after that one, I am going to stop chess. Maybe in 2 or 3 year I'll come again to RHP.

Update: May/29/2023. Back to 1200 puzzle book. Today I did first ten.
Update: Aug/25/2023. I did first 100. (Next goal is 500)