Courage, welcome to our web site. You are in for a treat. This was my first game of this type and I'm really enjoying it.
There's a number of forums here that can provide you with lots of information. If you are considering an Elementalist, check out the Ele's forum. There's also the Player's Match Up forum where you can find other players from this great community who'll be more than willing to help you through the quests and missions.
Also, on the main site, there's a Quest Database that can give you plenty of pointers, as well as a wealth of other information.