It takes at least 45 days of deliberate and focused repetition to create a new habit. Mastery of a skill, on the other hand, requires a set of fundamental habits that relate directly to said skill. Those habits must be refined and developed over time, some estimate at least 10,000 hours but much of that will depend on the person and the quality of practice.
Sustaining Excellence is a strategy that incorporates all of this on a larger scale. It can have several categories including Mental, Physical, Skills, Group or Institutionalized Excellence. The guiding principle is that Habit, Mastery and Sustained Excellence are all cyclical in nature. It’s neither journey nor destination but continual process.