I think I picked it up at exactly the right time because it was a total game-changer for me. I had already lost any faith in religion that I might have had and was looking for something to challenge me. It's not a particularly well-written book but it's a very accessible introduction to philosophy, which is what an 11 year old needs. My world became a lot bigger after that and I felt like my opinion was actually valuable. I realised that adults do not have all the answers. They have almost no answers.
Hm.. 3rd or 4th grade. 5th I definitely had a different perspective, and then I developed a whole new one halfway through 6th. And then I guess the rest of middle school was all messed up. Looking back my worst years were 7th and 8th but high school had been a lot better with minimal relapses.
So far, right now I feel my mind is quite open, so yeah, I'm happy.
At the age of 2 I started listening to my parents yelling at each other all night. At 3 I learned that my mother was cheating on my father for longer than I was alive. I like to imagine that I am my fathers son. But anyways, from ages 3 to 4, I got to see the darker side of humanity with the bitterness and general selfishness that was involved in the court hearings for the divorce settlement. Being used as a weapon and everything, being yelled at when i was with my mom, and having to watch my dad cry when I was with him.
I've had mai good shares of view point changes throughout the years (probably startin since middle school years - or even before that if I can recall that far back) ...ah yes, quite the storm at times. ;-S