Obituaries are like near-death experiences for cowards.
In order to be found, you have to be findable.
Be nice. (The world is a small town.)
The more good ideas you collect, the more you can choose from to be influenced by.
The best advice is not to write what you know, it's to write what you like. Write the kind of story you like best - write the story you want to read. The same principle applies to your life and your career.
Amateurs know that contributing something is better than contributing nothing.