Win percentage doesn't really say much about your level as a fighter. For instance, let's say that you only fight white-orange belts. In that case, 79 % would be less impressive. Also, what Nut said.
Just keep in mind that this game is all about having fun. If you make it all about winning all the time, you'll end up like the people that repeat "unfallible" strategies until they loose, by which they rage.