I used to love watching "The Incredible Hulk" tv show as a kid. I also was in awe of the male gymnasts that I saw on TV in the summer olympics. I guess I always knew that I wanted to be strong and muscular (I've always been athletic).
From there I found out about Arnold and started reading muscle mags. I wanted to build muscles like the guys I saw in the pictures in those magazines. So, I started researching weight lifting.
Unfortunately, my aunt's husband at the time put a haitus on my training. He had supposedly worked as an athletic trainer for the Detroit Redwings (which later turned out to be a load of BS, turns out the guy was a compulsive liar), and told my mother that lifting weights would stunt my growth and could be harmful for me (I was about 12 at the time).
So, I couldn't start lifting until I was around 16 (and even then I had absolutely no idea what I was doing, so I don't really count that in my training age). I did a short stint at the local YMCA with a friend of mine, but quickly stopped going when I didn't see any progress (and my friend pretty much stopped accompanying me).
It wasn't until I was 18 and asked for a weight set for Christmas that I truly started my journey into bodybuilding. Since that time I've played with numerous programs, got to train MA under some of the best MA coaches/practitioners in the world and eventually realized that I wanted to really focus primarily on building muscle (or should I say, re-discovered that desire from when I was a little boy). I also put on about 50 lbs of muscle, got a degree in exercise science, and got certified as a personal trainer.
It's been a great journey thus far. But, I honestly wish I had gotten an earlier start, and realized the importance of diet much earlier in the game.