I wonder how those doctors practice writing.

Calligraphy, everyone who studies calligraphy, the last step is to create their own unique style. Before that, we should study and practice, and never aim too high. The crystallization of the wisdom of countless generations of predecessors is precious. When we learn the calligraphy of famous artists well, we can consider changing a famous artist and a font to learn from each other's strengths, provided that we practice it well and make it perfect. This is to choose a favorite calligraphy as the basis, sum up the splicing, or create unique strokes, but the premise has advantages.