hi i went to a pga pro recently and he helped me with alot of things on irons. because i have been hooking every wood and pretty much all my irons. he helped alot by saying 1/4 way in my backswing point the toe of the club directly behind me (or something like that) and amazingly it helped.so i thought why not give it a try off my driver (which i have been hooking also) but then my hook turned straight to a huge slice. what is wrong and it really starts to make me have an unpleasant round help please

thanks