I started practicing calligraphy at the age of 25. It is neither too early nor too late. Once you get started, you must persevere.
The topic of practicing calligraphy is a long story. Many enthusiastic people have said a lot, so I won’t repeat it. Answer based on your questions:
1. To start practicing regular calligraphy with a brush, Ou Kai (Ouyang Xun’s regular script) is the first choice;
2. For copybooks, buy Ouyang Xun’s “Jiuchenggong” ", "The Thousand Character Essay", "Fahrenheit", etc., and buy another book "Introduction to European Kaihua";
3. There are many videos on the Internet. Search "European Kailuo" video on Baidu. .
I wish you success!