Putting yourself and your work out there and getting noticed is the exception.
No one will notice you.
Writing a book and people buying and reading it is the exception.
No one will read it.
Uploading that video to YouTube and people watching it is the exception.
No one will watch it.
Creating that song and uploading it to iTunes and people listening to it is the exception.
No one will listen to it.
The rule is that most of the things you do will never work out.
But if you only follow the rules, then the exception will never happen to you.
Then you'll never be the exception...
[Related: I stopped giving a shit a long time ago]