Search about "the Palace of the Dead". You can enter it after lvl 17 or something like that.
in that palace you start from lvl 1 and go to max lvl. leveling is very fast and you hold that only in this dungeon. after every 10 floors you get 10% of your entire real experiance. its nice way to level, specially later.
PVP (when unlocked) also gives real xp.
I"m not pro at all of this, so search about it. It will really help.
This way you can try out max level character within few hours, get some weapons, gear, repeat this process to oblivion.