Hi! Queer, poly, genderqueer, activist, drag/burlesque performer 27 year old preschool teacher for 6 years here. Any one of those things could have typically gotten me fired in some places.
I had serious concerns when I was first on the job market like you are, especially since it coincided when I was coming to terms with my gender identity, and I had no role models to look up to about how to do things as an under represented person on education. There were a couple of rules that I abided by that really helped me get to where I am now. For reference, I grew up in a low income family with immigrant parents in Philadelphia, a pretty socially liberal area in most (but not all) parts.