These are my feelings. Let me answer your question.
1 Calligraphy has only short-term requirements, not long-term requirements. So don't limit yourself, calligraphy is extensive and profound. You will feel satisfied if you don't have enough mentality.
There will be unskilled skills. If you don't practice for a long time, you will only be unfamiliar and will not regress, because your understanding ability is increasing day by day.
3 will not regress, even if it is not skilled, it is temporary. It's all a matter of time.
4 keep, persistence is the best way to keep.
It is recommended to practice more.