I want to start practicing calligraphy, but I don't know where to start, and I'm quite confused. I don't know how to practice. Who can help me? thank you

I suggest starting with regular script, either Yan Ti or Liu Ti, but personally I prefer Yan Ti, which may be related to my own practice of Yan Ti. Find a copybook and practice one by one. It would be better if you can find a teacher or someone with good writing skills around you, because he can personally show you where to push and where to collect pens, so that you can get started faster.

It's best not to practice running script from the beginning. After practicing regular script to a certain height, you can try running script, but this height may take one year or several years. To tell you the truth, I practiced regular script for 4 or 5 years before I started to contact running script. If you practice Yan Ti, I suggest you go and see the diligent monument in Yan Zhenqing. If you practice regular script to make you feel similar to the copybook, it is quite easy for you to write running script at this time.