Good work on your kata today, and remember, KEEP PRACTICING! There is no such thing as practicing or learning your kata too much. If you already know your highest kata, work on the spiritual and universal aspects. Learn the bunkai for your kata so that you know what your opponents are doing in addition to what you are supposed to be doing in your kata.
Here is the 10 Principles of Kata if you were not able to copy them down: 

Speed
Power
Form
Balance
Intent (Meaning that you know what your strikes are and what kind of damage they are inflicting)
Breathing
Focus
Zanshin (or open mindedness. Meaning that you are aware of what you are doing in your kata.)
Kime (Focus)
Kiai (Spirit)