What I need most for and from a black belt.

With the impending black belt test, I am of course analyzing and pondering my state. I have come to the conclusion that I need self-discipline from the training for a black belt and the being a black belt.
I don't feel that I need to improve in actual physical application of movements. What I need is to regularly practice them so that they are part of my life style. Up to now I have been resting on my laurels of teenage martial arts practice. It was enough that- even now- I can pull stuff out of my hat for when its needed. I know that is going to go away sooner or later.
One indication is my regular injuring of my hamstring. If its age, fitness level or whatever, I know if I am not regularly practicing- requiring discipline, more of these things will probably pop-up or just the hamstring injury again ad nauseam. That in turn will make it hard for me to practice and downward goes the spiral.
I know discipline won't insulate me from age or its affects, but it will give me the flexibility to make adjustments to keep the physical level that I can/should have.
(Please note that I am in no way saying, I know it all. There is more to learn, but what I am required and need to know now, I can do. I just need to do it regularly, consistently and internalize it, so I can improve on it, use it at the drop of a hat and learn more.)
Thanks for stopping by and reading my ramblings. 'preciate it.