It's way too low. You should be at least level 43 now.
While Balance wizards generally lose about one level due to Sandstorm (they use it, a level 4 spell, in Krokotopia against level 2 enemies, and because of that they earn less experience), you've also apparently been skipping side quests. This isn't a good idea, as it means you have less base Health and Mana, and get lesser stats because you can't yet obtain higher-level equipment.
My suggestion is to go back to Mooshu and do all of the side quests there, then probably to Marleybone as well.
