Hard-pen calligraphy is self-taught, and it doesn't cost much to go to a bookstore or buy a set of hard-pen calligraphy templates with concave characters online. Write a word every day. Great progress has been made in a month. More than 3 yuan at most.
it's hard to say if you are in a hard-pen calligraphy training class. 8, 1, even thousands.
In fact, the key to learning calligraphy lies in yourself. Don't be superstitious about any class. Otherwise, I can teach you for free.