I think this varies from person to person. Some students write a lot every day, but their progress is slow; some students write once every few days, and the word count is not high, but their progress is rapid. So what is the difference between the two? There are three reasons:
See if you are paying attention. If you regard calligraphy practice as a task and just deal with the number of words you complete every day, and don't pay attention when writing, put the copybook aside, and write according to your own wishes, then even if you write it many times, it will not only be difficult to make progress, but even stand still; Second, check whether the method is appropriate. The teacher mainly talks about methods during face-to-face teaching, orally and hand-to-hand, or oral formulas. For after-class exercises, the copybook is used as the "teacher" and one must "read the copybook" carefully. Every word written, and even every stroke, must be carefully compared with the copybook. Look for gaps; thirdly, see if there is a summary. If you feel that a stroke has been written well, write it several times to consolidate it; if you find that a character cannot be written well, or the strokes are difficult to master, you should also practice more, think about and summarize the crux of the problem.
Class time is limited, so it is important to practice diligently after class. One point given, one point returned! But this kind of dedication should never be done in a "reluctant" state; only if it is based on interests and hobbies can it achieve real and long-term effects.
The most important thing in practicing calligraphy is perseverance, perseverance, and diligence. The most important thing to avoid is being exposed to the cold, not concentrating on learning, and being eager for success.