There are two kinds of intellectual honesty. Honesty towards yourself and honesty towards others. There nothing irrational about telling white lies to others. You don't need to be open with your family about your religious beliefs.

For a religious person it's a sin to claim to be atheistic but the reverse is not true. For people with a religious background there's usually the idea that religion is important and that religious belief or it's absence has to be a central part of your identity. That's not true.

Although I don't remember for sure, I think I found this site through a late-night Google search, looking for anything that might help me in my quest to vanquish emotion.

Emotions generally get stronger when you fight them.