When I go through a spell like this it usually helps to stop at the range and work on it a little bit...if nothing else just for the confidence builder. I usually find I've been standing too far away ---or too close to -- the ball. Besides, you know what they say about a 3 iron...that it's the best club to hit when it's raining, because not even God can hit one!
Golf is such a mental game. That's why it's so hard for me! Good luck!