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.
Some pull out an old, beat-up golf ball when playing a water hole. Such defeatist thinking can also doom witnessing. I'm hopelessly inarticulate at talking about Jesus. But you are not hopelessly inarticulate. None of us is.