Actually, this is the mindset of the kind of person with no argument skills and their excuses have no relation to the argument. Maybe you should rethink this.
THE TRICK TO WINNING ANY COMPETITION IS TO CONVINCE YOUR OPPONENTS YOU'RE WINNING. IF THEY BELIEVE IT, YOU BELIEVE IT. SO IF YOU HAVE CONFIDENCE, EVEN ARROGANCE THAT YOU WILL WIN, THEY WILL BELIEVE IT TOO AND GIVE UP.