You can practice something every day and still remain mediocre if your heart is not in it. Repetition by itself is not mastery. Mechanical effort has limits. Growth begins when there is genuine involvement, when you are alert, engaged, curious, and pushing yourself to become better.
This is true of writing. It is true of fitness. It is true of art, business, learning, and almost every meaningful pursuit in life.
Discipline matters, no doubt. But discipline without inner fire can easily become empty routine. The real magic happens when discipline and hunger come together.
That is when practice stops being a ritual and starts becoming a personal transformation.