How to come to terms with fair to non-existent faith?

I would fall into the categorization of "Agnostic", but I have been a practicing Baptist for years and have recently convinced my wife to attend with my Daughter. My wife has embraced the faith wholeheartedly, which would make a proclamation of my doubts all the more problematic. Doing so would also result in being ostracized by many I know and a general upheaval of my entire life. Do I go on singing the tune? Mind you, I have known this was a problem for some time and have, for the most part, immersed myself to the point that I forget about it.