You have to understand the principle of "words are like people". In other words, how a person's handwriting reflects the character of the person who writes it. You can experience it for yourself. If your handwriting is too small and not grand, is your character not grand enough and you are usually too cautious in doing things?
So I think you should pay more attention to adjusting your personality, learn to act decisively when dealing with things, don't stick to small details when dealing with people, and be cheerful and generous at ordinary times. Slowly, it will be reflected in your writing. This style;
Of course, I’m not saying that you can’t practice calligraphy. I recommend you to learn it: I personally like Sha Menghai’s calligraphy, but I don’t know if you like it or not.