Should you learn hard pen calligraphy before you learn Chinese Regular scripts or irregular scripts?

For calligraphy, the method of practice can be said that the benevolent sees benevolence, the wise sees wisdom, and not others say how to learn, you will certainly learn well. In fact, calligraphy is a habit. A long-term persistence can make a difference. The habit of writing cannot be changed in the short term. For hard pen calligraphy, whether you are learning a book or a book, the ultimate goal is to be able to learn well and write a beautiful hard pen.