This may sound mean but I'm relieved
Why do you feel bad about being relieved.
I'm relieved at the possibility of being an atheist.
It's okay to feel relief at the idea of knowing who you are. Try finding more information on a topic before committing yourself to a belief so that you're truly sure of yourself.
Shit, I'm not even atheist.
It is okay to be unsure. I think you should continue to gather information and you will eventually find the answers you need to bring you peace.