What all writers, new as well as seasoned, need are eyeballs on your work. You need more and more people to read what you write, and to crave it, so that when you have something new come out, they can't wait to pick it up.
It's as simple as that. It doesn't matter if you're Stephen King or a new writer who just started her first blog post, all of us writers need readers to read our work.
And the more people read your work, the more money you can make. You may never get up to the level of success where instead of asking if you can afford the latest Lamborghini, you ask what color, but if you don't put yourself out there, you may never achieve your dreams.
Send it out--whether it's on a free blog post or self-publishing on the Kindle or even submitting to a professional market.
Then write something else.
Lather, rinse, repeat.
The world depends on it.