I know how you feel man. I'm in almost every band ensemble this year. Marching band, concert band, jazz band, full orchestra, and indoor drumline. Now idk of you're in high school or college, but my very first marching show was for a college crowd. I'm in high school. My school and 8 others joined Maryland and towson on the field. Over 800 people on the field for a full stadium. It's an amazing thrill.
Jazz band is great because I get to play and it feels like practice. No pressure, just jazz. I love band.