I many no longer depend on pleasant impulses to bring me before the Lord. I must rather response to principles I know to be right, whether I feel them to be enjoyable or not.
I like to be working and moving - the worst thing you can do to me is stick me in a room all day while you're lighting a shot. That just kills me.
As soon as I step on the court I just try to play tennis and don't find excuses. You know, I just lost because I lost, not because my arm was sore.