Because it has a certain grid, it has certain constraints on the specification of the font you practice writing. When practicing calligraphy, you should do it word by word, in order. After writing a page, you should analyze it and see where the gap is. To determine the contrast and measure the degree of progress. When practicing calligraphy, you must not write one thing in the east and two things in the west, which is irregular and will affect your mastery of composition and layout.
Practice writing in order, first, you can practice your composition, second, you can arrange the whole layout, and it will help you develop the good habit of writing good line order.