how did you guys get out

I’m 15 and have never believed in the cult but I just can’t get out of it I even have to take a consegration tomorrow for the first time and yeah that’s something else but my whole family is dedicated to the cult for generations. pretty much I just wanted to know how I can break it to my parents/family that I don’t believe in this stuff without ruining our relationship or should I just slowly drift away later on?