To learn calligraphy, is it better to learn hard pen calligraphy or brush calligraphy first?

Actually, it's the same.

Hard pen strokes are only different in stroke thickness, and the shelf structure and spirit are the same.

I suggest you have a look at the Chinese lettering font. It's the font used by the media today.

You can take a few screenshots yourself and carefully figure out how to write the strokes of each word.

After all, hard writing is more convenient.

-It is important to emphasize that the index finger must not be bent at a 90-degree right angle! It must be clear all the way. Strength cannot penetrate the back of the paper.