Heres a good one. Turn the overhead scoring off. Forget about score, score doesn't matter. Forget about hitting the head pin, it doesn't matter. Pick a spot on the lane, and practice playing there. For example, if you have difficult playing the twig, as I often do, then practice playing the twig. It doesn't really matter where the ball goes, just play the twig.
If you have trouble playing deep inside, like 5th arrow inside, then play 5th arrow.
If the ball hits the 7 pin, so be it, if it hits the 3 pin, so be it. Its just practice.