I'm really sorry to hear that LJ. I hope that your situation improves either at your current school or in a new environment.
Teaching is challenging in so many ways. It feels like there are endless people to please: Parents, your co-workers, principals, district administrators, and the state bureaucrats all have their agenda they want you to satisfy. I think most teachers in my building walk around with a constant self-protection mindset. We are in a stodgy field that demands conformity. Tenured or not, your life can be made miserable by supervisors that have any issue with you.
But there are schools with positive environments, so don't give up hope! It may take some time to find the right place. Other transgender teachers are out there. Not everyone gets tormented on national news (but my heart goes out to that that have been). In a town near me two openly transgender teachers are quietly engaged in their careers. Good luck!!