Excuse me, can I make money by learning calligraphy?

You can certainly make money, but it's not that easy to make that money. Calligraphy is like a vast universe, and the essence of its words and culture is amazing. It wasn't built in a day. You should endure the loneliness of successful people and cultivate your own self-cultivation. Some people can become famous overnight, while others can only practice calligraphy for a lifetime, haha.