Let go of Christianity if you want to live a full life. Learn to think and read for yourself. Learn to read the Bible critically, realize that the Bible is not meant to be taken literally but metaphorically (i.e. what happened in the Bible is not "fact" but mythology, similar to Greek, Roman mythology).

I don't care if you never smoke another joint in your life, as long as you let go of Christianity now, while you're still young and not too attached to it. Begin to question what you read, just think about things on your own, and you will realize how much of a sham it is.