Back in secondary school I used to think I'd make my way being a graphic designer or web designer, as that's what I was into (along with digital art) before I transitioned into web development (and then software dev in general, and then CS).

 

Before that I wanted to be a neurosurgeon, and before that, a weapons designer (I used to play Hellbender a lot, and the game's story revolved around the protagonist's father, who was a weapons designer).

 

...as it so happens my current research area involves battlefield robots, I guess things have come full-circle.