I practice Karate (Isshinryu) and am a little unsure about many things. I've pretty much mastered the basics (punching, kicking, blocking, etc), but I'm not entirely sure if I can fight yet. I'm totally stellar at kata, but when it comes to kumite, I have this annoying habit of trying to be flashy--especially with kicks--and I lose most of the time. Does anyone have any tips?