dont go to church because they force you to
if it's not your belief tell them they are making their entire denomination look bad.

it's your decision, NOT THEIRS, if you want to partake in that religion or not.

and do not think for one minute that because they are your parents you have to go to church with them because they say so. if you don't believe in mormon, or any religion for that matter, do not ever let anyone force you into it.