It takes perseverance to practice pen writing well, especially now that you are an adult, the font has been formed in your mind ("primary school students write"), and your hands have been controlled, that is, your heart and hands are one. It is very brain-consuming for adults to practice calligraphy.
All the methods mentioned above can be used, such as copying pen copybooks and other people's words.
Only when copying is long can you change the font inherent in your heart and then write directly.
1, I suggest you read some books about calligraphy rules and font structure rules first. Mr. Qi Gong, a great calligrapher, once said that structure is the most important word, and structure is bone, such as irregular bones and crooked words. Copying a person's words is not complete until you really master the structure of his words.
2. There are many kinds of copybooks copied, such as those of contemporary famous artists, such as Pang Zhonghua and Ming. Every year, there is a hard-pen calligraphy competition, and new people emerge one after another. You can also copy the calligraphy works written by the ancients, such as Wang Xizhi's Lanting Tie, Ou Yangxun, Yan Zhenqing, Liu Gongquan and Dong Qichang.
There are many forms of copying, such as tracing red, that is, white paper lying on it, following calligraphy and painting, reading copybooks and writing by yourself. The latter is more difficult but particularly good, because the latter is more conducive to your remembering other people's posts, that is, memorizing them. The advanced form of copying is to recite other people's word structures and write them yourself.