How do I become a model for Teen Vogue?

Sorry to break it to you, but Barbizon is a scam so don't be proud of being part of it. I'm not sure about Teen Vogue, but some magazines (like Seventeen) have modeling contests. If you're right for the job, you'll most likely be "discovered" in your early-mid teens. Being a model (unless you're famous), isn't all it's worked up to be.