Let the club do the work. Trust your swing. All those balls you hit on the range were supposed to give you the confidence and technique to be able to relax on the course. So, relax, you idiot. Oh, that works well.
Tension is the curse of golf.
In a sport that seems to require complete control, the straightest, purest shots are hit with a free-wheeling sense of fatalistic resignation. Take dead aim. Let it fly. Everybody knows it. So few can do it.