How to level your classes faster?:
-Complete all your limited dungeons within 5 levels of your classes
-Purchase or run Delphi Temple (first room). You can level almost all the classes that have at least one aoe with the exception of warlock. Just stack movement speed items + HoT items and whether or not you are geared will not matter as much, though it will take longer than a geared person.
-Purchase Manor DGN runs or run Manor using bard and engi. Again this can be done by stacking lots of movement speed gears or HoT items.
-Purchase Venin Trial runs. Again, you can run this yourself using bard and engi.
-Go to trials if possible
A note to add is that you should make use of the boosts available to you.
-Professor Koss in Aven
-<Tarrot Card Reader> Morlin in Aven gives you a 10% CP boost
-the Christmas NPC, Ganache gives you a boost of 5% exp, cp and move speed for 3hrs via turning in 3 anger tokens.
-Also when doing runs, using charms (auric, iris, cp charms) can help you level faster