We have all seen it before. Someone who lets everyone know how "Good" they are, or puts out an arrogant vibe through their actions.
As percussionists, we often have to perform aggressively and have conviction with the way we play, but don’t allow this aggressive nature to influence how you treat people. It’s one thing to be confident, but arrogance usually has negative effects on your relationships with people. The fact that you "Won State Championships" or are "The Best Player At My School" doesn't give you the right to put others down. It’s cool to be proud of your accomplishments, but don’t allow your pride cast a shadow on the people around you. Remember, there is always someone out there better than you, and being polite and humble goes a long way.
Whether you like it or not, you teach others how to treat you through your actions, and at the end of the day we are all part of the same team. We all start as just a kid from somewhere trying to get better and achieve goals.
So perform aggressively, act humbly, and your interactions with people will be stronger and more fulfilling as time goes on.
If you want to learn more about process and mindset, try our book Drumline Mindset. This book is full of championship concepts for drumline performers in the marching arts activity.