I'm 23 and I only just started working on my Bachelors degree, because I spent 4 years pretty much finding out what I never ever would want to do again, let alone as a job.
I wanted to do web design in high school, got good at it, took a freelance job. Hated it because my client changed his fucking mind every 2 seconds. And I had to make about 30 different, almost totally finished end products.
Then I wanted to learn programming, which was fun, but far too tedious for my ADHD addled mind.
Then it was art, but then I realized I sucked at art, so I stopped.
Then architecture, which I was ok at and I liked making buildings. But too many regulations and details for my tastes which led to what I'm doing now.
Which is 3D Design, all the fun of architecture with none of the bother! Which means I can also work in architecture doing previzualiazation, or do CG for movies and level design for games.