I held on for a couple of years expecting things to get better with certain "people" who run the district. Instead, it took a nosedive. I loved working with the band and had a great time with them. But it was causing all kinds of problems with me (both health and mental).
This past year I threw in the towel. The hardest thing was telling the kids. We had our emotional goodbyes, but life went on.
I saw a quote here some years back that pretty much summarizes how I feel.
"I miss it every day. I never want to go back."

If you really feel it'll get better, stick it out. But if it's taking a toll on you, maybe you can move on. I wish you all the best.