Okay, so besides my default "Don't listen to what people theorycraft about the game just play the game, if you go high on Air you'll be good in your own right people need to get over this idea "bad" is bad all the time"
@EternalKeeper roundabout made a great point - by default starting characters in L5R are basically samurai babies. You're supposed to be fresh out of gempukku (and not even done with it for the Beginner Game), and so you have basically no additional XP to spend. You're probably gonna be "bad" at a lot of stuff and very quickly with a little EXP round out. If your GM wants you to be a bit more rounded out, they can give you a bit of starting XP which would let you make some prelim buys on rings or skills so you can perform better.
Edited by UnitOmega