I wasn't a bad kid, I just didn't care. Some of that was because I didn't fit in very well, and some was because my parents had such clear expectations of me, and I was passive-aggressively resisting. They wanted what was best for me, the delivery mechanism just wasn't the right approach for me. I'd do as much as I absolutely had to get by, and it annoyed some of my teachers. The one thing I really glommed on to in school was Greek Mythology; nobody really took the time to say "He's found something. What could we do from there?"
I drifted until I realized I was going to need a business degree to earn more than I was making. It was grad school where I learned to love learning. It shouldn't have taken me that long to figure out.