Build words one letter at a time, one stroke at a time.
The secret is that calligraphy is an art that requires you to create single strokes, which you connect to form letters and words. It cannot be rushed, and it cannot be done carelessly.
Build your brush calligraphy foundation the right way. You can start today by learning the basics and understanding best practices. When you master the fundamentals and understand how letterforms are made, you can confidently develop your own style and processes for creating brush calligraphy.