I don't agree with my family on religious issues?

I have grown up in a Christian home. So, as I have gotten older, I have realized that I don't really agree with my parents on religious issues much anymore. I'm not going to go into detail, as I do not want to start any arguments or even heated discussions with anyone, but just know that I really don't see eye to eye with anything my parents believe anymore. I honestly am not even sure of what I believe at the moment. There is no way I can tell my parents that I don't agree with much of their beliefs, as they center their entire lives around it. They also still force me to go to church as I live under their roof, (Which I completely respect). I'm just worried about how they'll react in the future when they find out I reject some of the things that they've taught me. My dad is also extremely controlling and thinks that even after I am living on my own he will be able to have a say in my life (Who I date, live with, etc.) What should I do? Also, here is a link to a question I asked a long time ago that might better help you understand the situation. https://similarworlds.com/19-Spirituality-Religion/1282998-Can-my-parents-force-me-to-go-to-church
NOTE: Sorry, this is going to be long, but I feel that some background is needed for this question.