How should adults correct their writing habits?

For adults who have developed their own writing habits, if they practice (note: to be precise, it should be called "learning calligraphy". It's called "practicing calligraphy", which is vulgar! There is only one way to solve the problem of calligraphy, and that is temporary pasting. The purpose of the post is to correct your writing habits and make freestyle writing closer to the post. A few years ago, there was a man in his fifties who studied calligraphy. He insisted on ancient calligraphy every day, and was later laughed at by his colleagues and friends. His friend and colleague said: it is a child's business to stick to his post. Only when children learn to write can you post. You have more than a dozen people, and you still post like a child? Hearing about the work of colleagues and friends, he didn't say anything, just smiled and continued to post.