I'm writing a story about a girl who is highly skilled at karate. I therefore want to know what she will know and how she is likely to behave. She's seventeen years old and has been learning her entire life - how good is she likely to be? What values are involved? Is there some sort of daily exercise you do every day? What is it? What's the mindset supposed to be? What's the attitude towards emotion? How is she likely to use her skills in a fistfight against someone with entirely different training? Someone with similar training? Will it affect the way she uses a sword? I know nothing about this, so go into as much detail as you can.