My dad found out I'm a femboy and now keeps insulting me when my mum isn't home :(

LSS: My dad found my thigh-highs, texted me while I'm in my school and after I got home, he insulted me and let me be. But this morning, I got up on time and then he kept insulting me by saying "Get up, girl dresser" and also teased me by saying "Gonna wear a skirt today?" In a very sarcastic tone. And I can't go to my mum abt it, because she doesn't know I'm a femboy and I don't know how to tell her.

Pls help 🙏