In competition and in life, what's most important is what you do, no your opponent. Many times we are told by trainers and instructors don't do this or that. But, what works and doesn't work for you comes through self-exploration. You can do simulations, drill, etc., and that's fine. But, what you must know how to improvise and adapt. Patterns are predictable, so, you have to be able to change up and expect changes from opponents.