Steph - you do not suck, dear. That very thought crosses my mind every Sunday as I'm sitting in Sunday School. Is it WRONG to not truly know why you believe what you believe? And it makes me feel almost guilty that I'm having those thoughts. I'm sorry, I don't have any wise words or wise solutions for you, but I just pray about it, talk about it and read my bible and try to understand was much as possible...

But the moral of the story is, you do not suck =) They're totally normal thoughts.