Final answer:
The three essential elements of self-discipline are commitment, focus, and persistence. These form the basis of grit or resilience and are fundamental in achieving personal excellence and goals.
Step-by-step explanation:
Self-discipline is a crucial trait that helps individuals achieve their goals. It comprises commitment, focus, and persistence, which are essential in maintaining momentum, clarity, and effort until the goal is reached. To foster self-discipline, one can engage in active rethinking of their approach, improve time management and study techniques, and consistently apply the principles of grit to overcome obstacles and reach their full potential. A positive mindset and the power to learn are also crucial in developing self-discipline. By sharpening one's focus, maintaining clarity of purpose, and meeting challenges with continued effort, individuals can develop a disciplined approach to learning and achievement, ultimately unlocking excellence.