think about what you studied calligraphy for in the first place. Is it a hobby that you really like?
You can set a phased goal again, for example, write only a few words, such as "Strive for Self-improvement", set a time period, such as writing well in one year, and concentrate on practicing only these words in one year.
In the process of learning calligraphy, you will encounter the current feeling, which is like seeing someone else's handwriting "envy, jealousy and hate" and seeing your own handwriting "tangled and depressed". At this time, calm down, slow down and experience it quietly.
I believe you will gain a lot from this physical and mental experience.