Do you know the meaning of "home" in calligraphers? Calligrapher can be interpreted as a person who is good at calligraphy, but calligrapher also means someone who can write Chinese characters and push them to the artistic level. The one who has been called "the bookseller" in past dynasties is not brilliant. Although calligraphers can be independent of culture, each calligraphy has a unique charm, which needs to be understood through reading.
Of course, if you think your calligraphy is better than others (including your teacher), there is nothing wrong with being a calligrapher, and the worst result is to go out and sell calligraphy.