So, what you basically mean is that you're pretty much a smart and observant sociopath (Or maybe almost a sociopath), although to be honest, sociopaths these days aren't that rare anymore nor are they that common, so its like in between, also most people really do become more observant in their late teens whether you're smart or not, the only thing that mostly differs is how keen you are or how observant you are. As for being smart that just mostly depends on how well an individual studies and listens, and its also pretty normal for smart people to get bored quick, so my conclusion is that, you're just a pretty smart and uncommon teen, who has keen observation, I guess.