How long can calligraphy be practiced?

Calligraphy cannot be practiced overnight. Calligraphy needs a lot of efforts, plus the guidance of famous teachers and their own understanding, it is possible to achieve something. At that time, Wang Xizhi was making ink in the pool, and the water in the pool was black; Zen master Zhiyong practiced calligraphy hard, put bald pens together, made a 10 basket, and later buried it, which the world called "pen burial". There is no shortcut to calligraphy, and the advertisement saying "write a good word in seven days" is absolutely a big bluff.