I don't know if here is the right place or if it should be in the Cafe, but here we go.
So, what would you really be in a RPG game ? Magic, Antique Weaponry (Swords, Shields, Bows, Maces, Axes, Spears, Daggers, etc.), Guns, Machinery (Constructs, explosives, etc.), pretty much everything you could find on a game like that.
You should consider stuff like: Dexterity, Weapon Affinity, Intelligence, Strength, Constitution, Talents, and localization (If you were born on a Desert, you'd be more resistant to Fire att. for example, or if you spent a lot of time on lakes or the sea, you'd be comfortable with Water, etc.), weaknesses, anything that makes part of yourself.
Multiple Paths, like being able to be a Dark Magic User (Dark Magic ISN'T EVIL ! What matters is how you use it !!) or being a Rogue or being a Archer, are allowed as long as you can explain why you could be them. And if they aren't too many.
Shall we start ? (I hope this goes well)
Sincerely, i could only be a Mage specialized either in Water, Earth or Light, since i'm very comfortable with nature, the sea and the brighter the place, the better for me. I'm not too fond of Fire or heat, but i don't dislike it either, i'm pretty aversed towards Cold and Ice, even though i try to expose myself to those factors so i can handle them better. My constitution is small and i'm not strong at all, less than average (But way higher than Patchouli's Standards), i am though relatively agile, so i could be a swordsman, assuming i used only light-weight gear and focused for a swift and precise technique. I can't handle axes and lances don't seem to be for me. bows might get my attention, but i'm not into it much since i'll be a sitting duck on close quarters, i could only carry small arms if i were to use guns, and i'm 100% sure if i built something it would probably backfire on me.
tl;dr: Light/Water/Earth Mage, Swordsman (Myrmidon in FE Terms).
Hope this was a good idea, if not i'll just abandon the post.