In my 10 years of teaching students of all levels, I have found that making the needed adjustments concerning grip type and grip size gives you the best chance of realizing improvement very quickly. If the grip is too small and slippery, you will tend to hold on much too tight, creating a host of swing problems. If your grip is too thick, you will find in most cases that your missed shots will be in the form of a fade or slice.
If you use what are considered standard size grips by most manufacturers, chances are their grips are too small.
Now is the perfect time to get your clubs in working order, be on the lookout for this probable situation and contact your local CPGA Professional for assistance in this matter.
Talk to you soon, Joshua