Hi Alex, I'm Sarah and I'm a TeenHelp Buddy - which means my job is to help new users feel nice and comfy on the site, and to answer any questions you may have! When I first joined (waaaay back when ) I was super intimidated by how big the forums are, and how many people are on here! But everyone is SO friendly and warm. I'm sure you'll love it here.
Why don't you drop by the Arrivals & Departures Forum (click me!) to introduce yourself? That's a great starting point!
Anyway - my PM box is always open if you need anything, take care and hope to see you around!