When I was starting out in the industry, it was exciting...and intimidating.
It's one thing to snap a black and white image of a cool storefront and post it somewhere that will only be seen by friends and followers. It's entirely another to be hired as a professional to capture a couple's wedding day or a fashion show.
A big part of that fear stemmed from the fact that as a self taught photographer, I didn't have formal training or schooling to prepare me for a career; everything I learned was "on the job" or through exposure to other photographers who's work I wanted to emulate.
And while it's true that practice does make (almost) perfect, there is no substitute for expertise.
If I were to be asked by a new photographer or someone interested in photography for one piece of advice, it would be...
Experiment. Keep on experimenting and learning how to manipulate your gear, the images and your ability to see. Its through these kind of experiments you will discover your style and develop a following for your work.