In a perfect world, your mother would love you just the way you are and respect your decisions. In a real world, she'll probably get pretty mad... I've heard a few horror stories. My husband won't tell his parents he's Pagan. (They're "very Christian," which means they only go to church on Christmas and Easter, but they hate everyone who isn't Christian.) We still go to Christmas services with my husband's family, and pray with them and stuff just to appease them! Sometimes, it's just easier to pretend to maintain peace. I personally never discuss my religious beliefs (Pagan) with my mother, who is Catholic. I also don't have a close relationship with my mother, so I don't care if my mother knows who I really am.. . Since you're still a dependent, and you probably want to maintain peace with your mother, you may just want to be ambiguous about your inner beliefs. It's tough, but sometimes it's easier than how your mom will treat you. Then again, I don't know your mother and how she'll react. . . Do you have a close friend you can discuss this with instead? Someone who knows you and your mother would be a better judge.. . Good luck!