Discipline is self-respect that people can see from across the room.

Doing what you said you would do is mostly a private business, and it still shows. It turns up in whether your gear is ready, whether you are warm before the whistle, whether your work arrives finished rather than nearly. None of it gets announced. People pick it up the same way they pick up posture.

Choose one visible piece this week and keep it without exception. Bag packed the night before, first one on the court, the assignment in before the deadline instead of at it. It is small to maintain and it says plenty about how you treat your own word.