There’s no fancy process to this.
You read and write more. The more often you do it, the better you will become.
The key here is to read and write about things you LOVE. Because when you love to read or write about a certain topic, it becomes easy. You don’t have to think about it. It should feel effortless.
Once you build the habit of reading and writing, then you can start learning the nuances of how to read and write properly.