Not everyone who publishes a book is an author. He or she is just someone who has published a book. The best way to become an author is to write more books.
The best way to become a true comedian, filmmaker, designer, or entrepreneur is to never stop, to keep going. Obviously there are exceptions to this—there are plenty of brilliant creators who have made only one thing.
It’s not enough to make one great work. You should try to make a lot of it. Very few of us can afford to abandon our gift after our first attempt, convinced that our legacy is secured. Nor should we. We should prove to the world and to ourselves that we can do it again…and again.