Forced into church by parents

I need some help, I (16m) am forced into church by my parents, I do not believe in god, I think that my pastor is an idiot. My family is very religious and my mom would rather me skip school than church, how can I tell them that I think that I’m old enough to decide my religion myself and not be forced into theirs?

Edit: to clarify I don’t think my pastor is an idiot because he is Christian, I think he is an idiot because he has been wrong on multiple occasions

Edit 2: to clarify more (probably should’ve said this in the actual post) it’s not that I simply don’t want to go to church, it’s mainly that I am tired of pretending that I agree with some of the things they say and that I am Christian, it’s starting to really upset me that I’m lying to the people that I love and that I almost feel like they think I am a totally different person than who I actually am, I have not said anything yet because of how they would feel, I don’t think I would be punished, but I also don’t want my parents to feel like they failed.