It can be solved by practicing calligraphy. You don't have to earn anything. Just cultivate sentiment. If you can arouse the interest in practicing calligraphy, it will definitely advance by leaps and bounds. Don't read ancient books. Ancient books may not be easy to understand (for non-professionals, of course), and secondly they are not systematic and rational. Some people sometimes pretend to talk nonsense (of course, modern people also have it, but it is easy to judge).
Deng Tuo said that primary school students should start from the basic strokes of regular script, and they should not come to Liu Gongquan and Yan Zhenqing. Although we are not primary school students, most of us didn't practice calligraphy seriously when we were young. This opinion is still worthy of reference.
How to practice calligraphy? If you are practicing calligraphy, you can start with a brush. If time and energy are not enough, I just want to write beautifully and directly with hard pen. There are some hard-pen copybooks on the market, but most of them are of low quality. You should choose carefully. Ask knowledgeable friends to practice calligraphy methods, but the key is to look pleasing to the eye. If you choose, you should practice hard, like primary school students, copy first and then copy together.