Pansexual...

 I am pansexual in a homophobic household. I have the parents that are ok with lgbtq+ people as long as it's not their kid. I don't know what to do about it because my dad always brings up gay people and laughs and I want to stand up to him but I can't. And I am 15 so I don't want to be kicked out of my house or be removed from the all girl CATHOLIC school I go too. I hate the fact that it is a religious school but I have met so many accepting friend (majority of them are also apart of the lgbtq+ community!) and the education I am receiving is amazing. I'm lost on what to do... help?