1.rappelz-item.com/tag/level/">level(1-20):Basically you'll be stuck on Trainee Island till about lvl 13 pre epic 3. Could be 15 or 16 now with epic3.Basically you won't recommend using a lightbow as of now,because it'll only hinder your leveling speed.You will want to gain levels as much as possible because thats where it starts becoming fun.
2.Level(20-35):Just do all your quests in the 3 towns, and it should take you to at least 30+ with Epic3.If you just want to grind,you can grinding on turtles for their slow movement speed.Also,be sure to enchant/upgrade your bow as soon as possible,you need not max your armour for reasons in which you can explain later.
3.Level(35-45):Pre epic 3,maybe you didn't really have a choice but to grind till almost lvl 40 on the lafutels in Laksy near ivory tower,but with the inclusion of the Moonlight Dungeon.you can going there to level,reason being,Energy charge which is your primary healing skill don't cut it anymore above lvl 35.So by joining a dungeon party,you will have lesser down time,but of course grinding alone means you're in better financial state,because all drops belong to you,and chances of getting a common pet card is also higher.Also,you could duo with a kahuna till lvl 40 for their heals and buffs will make you an excellent fighter outfield.