Screw my grandparents

I feel sick. My stupid grandparents have tried to force their religion on me AGAIN. Every single time I'm with them they shove it down my throat. For the past 2 years I've gotten stupid books about God for Christmas. Now I'm not against religion or people that follow different religions than me, for that is their personal beliefs and none of my business. If it gives them joy, then hell yeah, but for me, I simply don't believe in it. I've never believed in Christianity or anything like that, clossest things to religion I believe in are karma, spirits, and reincarnation. I'm so fuckin sick of my grandparents shoving it down my throat. My only Christmas present from them being a book on why I should join God or I'll burn and shit is certainly not pleasant. Merry Christmas to me I guess.