<human>: Sort of an odd question, not entirely sure if this is the correct subreddit but alas I just need some answers and this community is fairly good at doing so.

Background: I am 19, a freshman in college. I come from an extremely religious (Catholic) family, with my mother as the sort of religious head-honcho in the family. I have turned away from religion for a time being and am currently floating along trying to decide what fits for me. I cannot tie myself down to any denomination (not atheist, agnostic, closest I could say would be deist but that doesn't quite fit), but I am definitely not Catholic. The issue arises in that I will be pretty much disowned should I alert my family to my changed religious beliefs. For years I have kept up the illusion that I am still Catholic (I go to mass and do all the rituals, etc). My friends have been heavily pressuring me to let my family know of my religious preference, to the point that arguments are frequently spawned over my decision to keep my family in the dark. I guess the question I have: is dropping the illusion of religion worth losing my family? 

I never thought I would have to ask such a question - it seems so blatantly obvious to me that keeping a simple illusion is causing no harm, and dropping it would be so detrimental that the few benefits are not worth it. But am I missing something here that my friends aren't, something that is worth losing family over? I guess I just want confirmation that I'm not crazy in doing what I'm doing, and my friends are at fault for attempting to pressure me into essentially leaving my family for good.

Thanks Reddit, I appreciate it.

Can you succinctly summarize the text in 1-3 sentences?
<bot>: Intensely religious (Catholic) family, I am not. Disowned if I admit I am not Catholic. Wat do?