Erm... (Vent? Looking for advice.)

So I usually go into the men's room in afterschool.

I am a transgender guy in a red state.

I do not use the men's room during school hours.

A homophobic transphobic guy saw me in there during afterschool (Me and my friend was washing off our paint brushes) and I am worried I will get in trouble tomorrow.

I do not use the men's during the day because I am worried I will get jumped and I do not use the women's because it makes me feel uncomfortable and it feels like I am being weird since I would be a guy in the women's restroom. There is a family restroom but it is usually locked during afterschool and honestly I prefer going into the men's even though it is usually gross.

 ANYWAYS!!!

What should I do? I am very anxious...