Coming out of the broom closet .... again?

I "came out of the broom closet" to my rents about 3 years ago, and I have convinced them since then that I am a Jesus loving child who loves god. But, I still hide inside of my broom closet (In this case my mind) because, I just feel so so strongly about it and I feel that I need that religious aspect in my life to fill my voids in my heart. And it would be the best thing ever if my parents could accept that so that I could get some books and learn everything I can out in the open and not feel guilty any more. What are your thoughts on this? Should I even try to bring it up again after they shot me down so hard the first time and I know that it might just cause me more pain and trouble in the end or is it worth it to tell my parents how I feel even if they don't quit understand?