Starting a Youtube, advice?

First off, I am a teenager (almost 17) but not one of those annoying, preppy, no brains one. I watch a lot of beauty guru's from Michelle Phan to some less known ones but are still kind of big. I would like to be a form of beauty guru, but I wanna take it a step further and be more unique. I want to make a guru channel for those people who HATE to be the same as everyone else, who maybe are a little nerdy or like art instead of cheerleading, have more statement pieces and those statement pieces say have a cartoon character or movie logo instead of just be a slightly brighter color. Any thoughts, and any more advice?

P.S. : I do have a decent to high quality camera, and have acting skills (from being on stage and what not)