Self as Writer

I love writing. It is my outlet, my sanctuary. There's something about writing that allows me to express myself like nothing else can. It's often the only way I can organize my thoughts.
My hope is to be a professional writer. I plan to be a journalist. I would like to write features and eventually start my own magazine. However, I would also like to have other works, such as poetry and novels, published.
I truly enjoy writing, but I definitely lack self-confidence. I'm always terrified to share my work. I cannot read it aloud, and I become incredibly nervous and uncomfortable when others read it. I suppose this is my main weakness in writing.