Rule 4: It’s the next ball that counts

Players enter each game with a fixed amount of energy.

It takes energy to be angry over something you didn’t do well. It takes energy to dwell on a missed shot. It takes energy to worry about a goal given up.

And all of that energy is wasted on something that can’t be changed.

“Think about the next ball,” I say, “not the last one.” You can change what happens next.