Tired Band Teacher

I teach band at a small private school where they have made band classes mandatory for 5th and 6th grade students. The main problem is that most of my students would rather be anywhere else but my class and it shows.

In my 6th grade band today, out of 23 present students, only 7 students had all the needed supplies to play (3 winds and 4 percussion).

I'm tired. I'm tired of having to drag them down a road they don't want to go down. I'm tired of trying to make class fun and engaging only to have them not pay attention the whole time. I've tried different incentives but they honestly don't care.

Can anyone give some advice/encouragement to this discouraged band director?