New to the board - any drills for preparation

[numbersguy44]

New to the board as well as TGM. Looks like I might have to make a stop at the book store this weekend to pick up a copy. Have to honestly say that a lot of the information i have seen seems to be overwhelming, compounded with the fact of 20 odd years of a certain type of swing. Any thoughts on a good place to begin or some drills that will better prepare me for the journey. A few summers back led me to the realization that what was truly lacking from my game was the sizzle on iron shots, and I deduced that lag was the key, but had absolutely no clue on how to go about generating it. Hopefully this may hold the answer for me. Thanks again.