I really like this premise. Using public restrooms comfortably is a privilege many of us take for granted, and this is a very important issue to tackle.
I was confused who I was playing as. I knew I was a transgender teenager, but what was my specific identity? Going into either bathroom gave the message, "this is not your identity." If neither is my identity, then what is? Is the idea that if I enter the woman's bathroom my character is biologically female but identifies as male, but if I enter the men's bathroom my character is biologically male but identifies as female?
I think it would've been nice to know where the restroom was located too. The pictures are surprisingly not helpful! The bathrooms look like they could be at the safe warehouse my Dad works at just as much as they could be at a subway or ballpark stadium! If it was in a place that I thought was safe and the protagonist was familiar with, I would probably have chosen the bathroom that they would have preferred.
I realize after reading some comments that you say the character is non-binary, and that this was expressed in the "about" section. That would explain what was meant by ",this is not your identity." I think this should have been included as exposition before you begin the game.
You did a great job with this game! Even though some bits were confusing, the fear and anxiety of the protagonist came across very clearly.