Line writing is smoother and faster, and it won't make others recognize it. Therefore, I recommend you to practice running script. You can buy some copybooks to copy and recommend Pang Zhonghua's running script. His handwriting is very beautiful. I bought a lot of books.
Practicing calligraphy is long-term. If you want to practice, you should calm down and practice well. Keep practicing for an hour every day, and pay attention when writing by yourself.
I wish you a beautiful calligraphy as soon as possible.