How long does it take to practice copybooks?

If you practice one or two pages every day, your handwriting will improve obviously in a month.

But it will be a long process to reach the level of competition. You can draw first, understand the stroke characteristics of the characters and the relationship between the strokes, and then paste them after a period of time, put the copybook aside, watch the copybook write on the homework paper word by word, and master the brushwork and meaning of the characters. Finally, you have to memorize it. You can write your words without looking at the copybook

First of all, you should choose a copybook that you like personally. Before you practice your words well, you should only practice that person's copybook, otherwise you won't make much progress. After you practice, you can observe others' and finally develop your own style.