Okay, so I come from a server where all the warps are available. So I looked at one the leveling guides, it says Glastheim Culvert 12-25, but how are you supposed to get there when you have to walk through geffen field with kobolds and stuff?
At 12-25 even if you could get to Glastheim it would be too hard, culvert however is a good place. To enter you'll have to apply at the recruiter, he's located in Prontera city, inside a building which is located north-west of the city (knight guild).
