Many people complain about not being able to hit the
ball well with their woods, and in particular their driver. From what
I've seen poor quality contact is a major problem for many players.
Put a tee in the ground (without a ball) sticking up
approximately 1 inch. You should be able to strike the tee consistently
without hitting, or even brushing, the ground at all. If you miss the
tee, or touch the ground in any way, don't wonder any longer why you
can't hit your driver. Remember--the longer the club, the more precision
required. Practice this exercise until you can consistently clip the tee
without touching the ground (or even the grass).
Once you get quality contact handled the feedback you
get from your shots becomes meaningful. Then you can work on directional
control.