I'm very much into the whole 'facing your fears' thing.
Often when you shine a light on a fear, you see that there was nothing to be frightened of. But if you let it fester away in the back of your mind - that's when it has power.
What you want is to feel confident, right? Like you can just go out into the world, and whatever happens...you'll be fine.
How do you get that feeling?
To me, confidence is something that is earned. Everytime you do something that scares you, and you come out of it on the other side, you earn a confidence point. Do this many times, and you get many confidence points, and you become...a confident person.
It's not something you're born with, or that some people just have and others don't. You can have it too, but you have to be willing to really get out there and face your fears.