Study ancient methods and adopt the best methods. For hard-pen calligraphy, you should mainly study ancient inscriptions in small regular script. This is more effective. Moreover, if you study modern calligraphy, it is easy to make the words tacky. If you just want to write better, you can choose copybooks from modern people, such as Tian Yunzhang, Tian Yingzhang and Lu Zhongnan, a first-class contemporary calligrapher. Hope to adopt it