maintaining good sized divots

[Naz 089]

Lately I have had a lot of trouble lifting the ball of the ground. On many occassions I do not get under the ball and it goes low and when I make an increased effort to make a good divot I make a deep divot before hitting the ball. Both result in great losss of distance and vibrations in my hands. What may I be doing wrong and how can I develop consistant ball striking to improve my second shots on par 4's.