I was in a situation that was so purposefully and continually toxic that I had nearly convinved myself that maybe I was getting to old and out of touch for this job. I love what I do - have great passion for teaching, and I have options to teach another subject. I applied for both band and non-band positions knowing that music was still my greatest passion. I ended up in a band job in an excellent district. I'm in my 3rd year of a growing program that brings home some descent ratings, and I love my super supportive admin, staff, and community. Perhaps it isn't you - perhaps it just isn't the right fit. If you are passionate about what you do, than do it.
As for the position I left... the things I worked so hard to build have collapsed, and it breaks my heart for the kids there, but it also validates, in a way, that perhaps I was doing good there after all, and maybe it was even more of an uphill battle than I even realized.
In the end... Follow your heart... Listen to your soul...