It's best to practice pen-and-ink painting from checkered characters, and from block letters, you can refer to the strokes of block letters, but you can't cover them with white paper and write them with strokes. You should write it yourself, one by one. You should persevere, practice for an hour or two every day, and start learning block letters after you pass the standard. You can check the calligrapher's style and choose according to your preference. As long as you keep writing, I believe your handwriting will change in two months, your pen handwriting will be fluent in two years, and you will become a famous pen calligrapher in twenty years.

As long as the kung fu is deep, the iron bar is ground into a needle!

Not afraid of failure, I am afraid I can't persist!