To lower your score, it’s essential that you have control over the distance and direction of your shots on the course so in every situation you know exactly what we'll be your weapon of choice (club, that is).
To do so, I recommend that you dedicate your next outdoor outing to making a distance chart of your average distance with every club. See image below.
So do at least 5 shots with each club and write them down on a piece of paper. When you're done, calculate the min, the max and the average of each club.
To measure the distance travelled with each shot you can use a rangefinder at the driving range or measure them directly on the course and write them down on your chart.
By knowing these values for each club, you’ll be able to take better decisions as to your positioning on the course and the appropriate club for reaching your target and avoid obstacles.
To improve your performance, it’s essential to identify your strengths at the very beginning of each season and use them to your advantage.