You Can Try Too Hard and Get Worse!
I see folks trying TOO hard at getting better and sometimes go through a very difficult period until they get tired and relax. When you're practicing make sure you hold the golf club lightly in your hands. Take a breather after each shot. Grip pressure is a real killer if you don't be careful.
In fact, many a golfer who says, "it was that last shot on 18th hole that keeps me coming back"....well did you ever think that maybe you just finally relaxed because you knew the round was over.
Nobody is shooting at you and they are not going to electrocute you if you play bad. Lighten up your attitude, grip and forearms. Nicklaus used to talk about soft forearms all the time.
Just like a receiver in football trying so hard he starts dropping passes you too can try so hard and think so much that you get yourself tied up in knots.
Overall on the golf course don't think! Drill...drill...drill and forget it! Let the work you did on the range meld in to your golf game. Don't take it on the golf course.