Out of character
Very few people figure out magic on their own, and the same can be said for most class abilities. When were you trained? By whom, and under what circumstances? Did the Wizarding Academy take you from your home at an early age because you were too powerful to raise without specialized knowledge? Were you a happy pickpocket for decades, but when the Thieves’ Guild moved in, you had to up your rogue game to stay alive? Did you learn how to use a sword from the Complete Idiot’s Guide to Fencing? Did you see a flier for Master Chan’s dojo and think, “Well, nothing better to do on a Saturday….” Are you still tied to these names or places in any way? Are you trying hard to not be tied to them?