Do hunt logs and guild hest roulette. Guild hest roulette gives decent exp until you are able to unlock dungeon roulette, and then that's what you should go for.

Also, you should get maurader to lvl 17 and complete the msq that unlocks copperbell mines. After that, you can unlock the Palace of the dead which is a great (if tedious) way to level up. Especially DPS classes since the queue for dps there is faster than running lvling dungeons as dps.