I came away with lessons with applications beyond golf. Play against the course, not other players. Don't think about whether your opponent is doing well or badly. Just be concerned with yourself. Play the game.
Scores then take care of themselves.
In witnessing, don't worry about how the other person seems to react. Just deliver the message in the clearest, most sincere way you can. Leave the rest to the Holy Spirit. Don't doubt yourself. Golfers psych themselves out by selling themselves short.