Most Helpful Girl
I'm all for girls going short hair. I myself have a pixie, but I like hiding my face so I have rather long bangs, and it gives my this edgy look which I love.
Honestly, the girls that rock the short hair are the ones with confidence. I always get complimented on my hair by girls saying they wish they could pull it off. Truth is, if you love it and have confidence anyone can. Those people who say only certain girls look good with short hair, that they have to be super skinny and have a small face and what not are just stupid, and have no idea what they are talking about.
Just be prepared for comments from dick guys and bitch girls. Every once and a while you'll get comments like, wtf is that girl gay? That girl looks like a guy. Why don't you grow out your hair you look like a dude. Of course I don't wear make-up and my everyday clothes are the loose comfy type, but when I dress up for work and show of the bod (XD) I get a few compliments.
If your nervous on how it will look, just have the person who is cutting your hair gradually shorten it, so you don't end up too short. They are usually good about it, if it's your first pixie. I think you should go for it, you also have this experience where you are no longer constrained by societal norms, its really cool.