How many years and how much does it cost to learn calligraphy well?

Writing good handwriting is not the same as learning calligraphy. If you want to write a good hand, you can basically do it in more than three months as long as the stippling is in place, the structure is reasonable, the writing is standardized, and you work hard. But learning calligraphy can't be completed overnight. As the saying goes, "Rome was not built in a day." As for money and calligraphy, I think money can't learn calligraphy well, but it takes some money to learn calligraphy well on pen and ink.