Does Anyone Else Struggle With This?

I know I have been talking a lot about "religious" stuff, but I am just so excited about what I've been learning. So please be gracious, and I would love to hear what you think-- even if you disagree! :-)

I was pondering my last post, and thinking about why Christians aged 20-30 have such a different view from those in earlier generations. And why only 10% of voters have a biblical worldview compared to 48% who claim Christianity. This reminded me of the difficulty I have had since leaving my "school years" (high school-college age) in learning to have a biblical worldview instead of the humanistic view that we are taught in school.

I remember one time in college, in sociology or something like that, when the professor just had to pick me, asked if I was at home with children and an intruder broke in the middle of the night -My family's lives were in danger - I have a gun - What do I do? I said "Shoot." "To what end?" "Death, if necessary." "But doesn't the Bible say 'Thou Shalt Not Murder?' " "Ok, so I shoot their legs."
She proceeded to rip me to shreds, and the Bible along with it. I left nearly in tears because I did not know how to defend my beliefs or position. I could not argue what the Bible said versus humanism because all I really understood was humanism. I did not understand what I knew to be truth - now I do regarding that subject, and I want to know more about everything else.

Anyway, my question for anyone else willing to put themselves out there, and if I may, specifically those of you who attended Christian schools and colleges: Do you struggle with this biblical versus humanistic worldview? I feel like every time I come up against something new, it's like I have to relearn it, from a biblical standpoint. And I want to! But sometimes I feel so overwhelmed that the whole world is against me, and like I will never really *get* it. Like I have so far to go. (This is why I seek discussion - although I know this forum makes me sound more like just a know-it-all. Please look past this soapbox scenario and understand that this is me, growing and examining, grateful that He is so amazing in teaching me.) Hear me- if my gifts are knowledge and wisdom, why do I get such a negative response from other Christians when I am trying to learn? Do you have to have these gifts to have such a hunger for understanding? Does anyone else feel like they are being discouraged from growing, because it typically means growing away from the world and the mainstream Christianity?

Should we just blend in with everyone else in the name of unity and tolerance? Should we defend our positions? How do we grow if we don't challenge each other? Are only *some* of us called to fundamental Christianity? Why do we ostracise those as being fundamental and "not normal?"

Just wondering what you think. I know what I think, but share with me a little, will ya? ;-)