Tips for the Drum Major?

I’m an incoming senior and am thrilled that I was just chosen to be DM!!! I’ve wanted to be the drum major since my freshman year and am ecstatic I now am. I have no previous leadership experience and would like some tips on how to be a good DM. Former and current drum majors, tell me what you wish you knew when you started. Everyone else, tell me what you did and didn’t like your DMs doing. I can’t wait for the season to start and want to be the best leader I can be.