Learn and review the most important swing fundamentals and key swing positions off-season to improve your on-course strategy in-season.
Whenever you take lessons and try to make a swing change, it is important to remember a few points that will help you with the transition.
Practice the swing change, but try not to overdo the new move or motions that your pro suggests. What happens to a lot of people after a golf lesson, it that they exaggerate the new move and that may throw off tempo and timing. You may actually hit the ball worse after a golf lesson.
Be patient and rehearse the move without hitting a ball for several sessions until you are comfortable with the new move. Rehearsing the new move without hitting a ball will help ingrain the new move into your swing and then it will feel more comfortable and natural when you actually hit balls.
Finally, try not to stress out about your score for the first few rounds after a lesson, it may take several weeks before you own the new motion.