I could see a number of different classes fitting for you, but I think I'm leaning the most towards Black Mage as well. I think a lot of the Black Mages could be described as quick learners, nice, perfectionists, having high tension, slightly socially awkward, and full of integrity! While it might not be a perfect description for all of them, Black Mages like Vivi are pretty introverted and reserved. Many of the Black Mages characters are a mix between cheerful/gloomy, leaders in their own rights, pretty confident with what they're good at, calm, and in-between feminine/masculine. For some reason, I could picture a Black Mage wanting to be involved in things like teaching, animation, and game programming (if that was options for them!)...and I think they'd be pretty appreciative of team work too. :)