But make sure there is nothing wrong with your pen control first, otherwise mistakes will gradually accumulate until they are destroyed. Some people practice running script directly, and some practice "Jianghu body".
You can buy a running script and a regular script copybook. Try to write a running script first. If you can't feel it, practice regular script. Anyway, calligraphy can't be practiced in about a year. You must have patience and perseverance.
I used to write like a doctor. At first, I didn't know anything, so I bought a copybook, which was calligraphy, thinking that as long as I worked hard and wrote diligently (it should be called copying). Later, I found that I couldn't write well without copybooks, and then I heard that I had to practice my handwriting, but I couldn't write well when I came. Feeling forced to imitate, I found a friend who knows calligraphy.
Practicing calligraphy is the process of changing your existing habits. Your writing habit has been maintained for twenty or thirty years. Changing it is like asking a right-handed person to use only his left hand at once, and calligraphy is difficult to practice. You should forget all your previous words. Some people wonder, "Why are the words getting worse?" It is for this reason that your old habits have been forgotten and your calligraphy has improved.
Practice regular script until one day you think you can write running script, then you can practice running script. Just like learning a bicycle, you keep paddling with the pedal, and suddenly one day you think you can ride it without falling. As a result, you can really ride it without falling off, and only you can feel it.
I wish you an early practice!