There are other options out there but if you think you want to teach (and enjoy summer vacations that you won't get when you leave teaching) maybe it's a priority or organization adjustment needed. What "stress" and "pressure" do you have on you?

It's band. Sometimes we take ourselves WAY too seriously and need to remind ourselves it's just band. Have good rehearsal plans, have good rehearsal etiquette and expectations and teach music. If you are HS and feel like you are behind learning the show, simplify it. If you are middle school or beginning band focus on the fact that you spend 6 hours a day making music. And if you aren't spending 6 hours a day making music something is wrong with your schedule, your rehearsal plans, or your school.

I know when I reflect back the pressure and stress I had were 99% self inflicted. I had much higher standards than any admin or parent around me did. That doesn't mean you change that but it does help put in perspective that maybe the "pressure" you feel isn't really there and you can relax and just keep doing what you are doing. Makes it more fun.