From The Guardian:
“Tyler Herro, a 20-year-old rookie, poured in a career-high 37 points to lead the NBA’s Miami Heat to a three games to one series lead. Tyler Herro should still be in college. He’s not, but is still a student.
“He carries a red spiral-bound notebook with him at all times, jotting down notes when things pop into his head. What worked, what didn’t, where he thinks he can get better and how he’s feeling after a game.”
A notebook and a commitment to using it is an archer-athlete’s greatest training aid used to improve.