Using TrackMan allows you to choose the club and ball data based on what you want to achieve. Several key numbers are imperative to becoming a better player. If your numbers are too far off it doesn't matter how much you practice. You are not going to see your ball striking improve until your club and ball data improve.
I cannot tell you how many times I hear, "I am not getting any better and I practice all the time". I then see this person doing the same, "WRONG" movement over and over on the range.
I am confident if you start using TrackMan and understand the data your ball striking will improve faster than ever before.