How do you get over the "awkwardness"?

I'd like to become very comfortable with my own body, etc. But I feel so awkward when it has anything to do down there [vagina] or anything. I don't even like looking at my own boobs, naked, etc. I have confidence but I really avoid the subject all together when it comes to sex, and just being really comfortable with your womanly parts. I'm 16 years old btw. And everyone my age just seems so comfortable with their EVERYTHING. How do I become this way?