Try talking with the section leaders, either together or separately. Maybe they can reign in their section a bit.

On the other hand, it’s marching band. It’s supposed to be fun. Disciplined, but fun. It can’t be all drudgery all the time, or people will quit. You will be miserable, too. Feel free to have fun and laugh every now and then. Think of good, effective teachers you’ve had. They know how to take charge when needed, but they also know when to cut loose a bit.

When you are in the role of drum major, be the drum major. You shouldn’t be drum major 24/7. Only when you’re in front of the band. When you’re not leading the band, don’t lead the band. Just be yourself, still be the teenager you are. Be sure to be nice to everyone, though. Don’t gossip, and don’t put people down. 🙂