Discipline is the bridge between goals and accomplishment.
When practicing your golf game, do you do so with discipline?
Do you go to the range and allow your mind to take you from one swing thought to another depending on the outcome of your last shot?
Do you go to practice with an intention to learn about a particular part of your swing, only to have your mind lose focus and begin paying attention to something else?
If so, then you could begin to add discipline to your practice.
Set an intention for all, or part of, your session and stick to it!
Discipline is the bridge between goals and accomplishment.
Where else in your game could you add some discipline?