Sorry to ask so many questions about this I’m just lost

I’m only 15 and confused my mom makes me go to her church three days a week and sometimes she talks about how being gay is a sin and it makes me feel bad she doesn’t know that I’m bicurious but it still makes me feel like I’m not welcome at church my mom has a boyfriend that she’s pregnant by but she never talks about that sin she just always talks bad about gays it makes me feel like I can’t be Christian Please help me:( what do I do