Can I practice writing directly?

Absolutely, because it is very important to cultivate interest in what you do. I can see that you like running script very much, so practice according to your own interests! After all, a person has accumulated a certain knowledge of writing regular script and running script through previous studies, but usually he doesn't pay special attention to the strokes, strokes, structure and layout of words. If he pays more attention to these aspects in practice, he will certainly improve, so don't worry.

Choose your favorite template, keep writing, and you can see your progress when you practice to a certain extent. But in the process of practicing calligraphy, sometimes I feel that my handwriting is getting worse and worse, as if there is no progress. At this time, it is normal for you to have high vision and low appreciation ability. At this time, you must persist and strengthen your practice. After that, you will feel that your handwriting has improved. In the process of calligraphy practice, the phenomenon of "eyes are superior but eyes are inferior" will appear repeatedly, so every breakthrough is an improvement.

Perseverance, continuous practice and continuous improvement will also make you put forward higher requirements for yourself. At that time, in order to strengthen their basic skills, I would occasionally practice calligraphy styles such as regular script. In short, there is no fixed method that can make you progress and improve yourself.