The Problem for New Players

[Nuru]

I've been playing for 3 hours and I barely made it from R14 to R15 on my PUG xD

But oh well, considering the level cap is 50 right now that's not entirely bad, and I hear XP is insane at higher levels because of XP Chains and Links.

you should try your hand at Shposhae, the mobs in there give great amounts of exp even for me at lvl 23, so since they are around your level then the xp should be much better