Self-discipline is the fuel that powers our internal drive!
When I was in the military, we used to tell our newest troops, “Either you discipline yourself, or someone else will”.
Personally, I found it easier and far more desirable to make myself do what needed to be done, rather than have the consequences of slacking off, or taking the easy way out.
Disciplining myself to run and exercise on my days off, for example, allowed me to pass fitness tests with flying colors. Staying up late and studying when I would have rather been having fun produced more promotions for me.
Create the habits of self-discipline in your life. No one I know has ever regretted doing so. It will bridge the gap between your goals and accomplishments!