I'm 24. My prediction at age 14 was that I'm going to become a martial arts coach and be one until the day I die. Actually, at age 18, I still thought the same thing. At age 24, not only I'm not a coach and not planning to become one, but I'm also not practicing the style I practiced for over 10 years anymore.
I came to a conclusion that trying to predict the future is a waste of time and energy.Almost all my predictions from 10 years ago, 5 years ago, even 1 year ago (!!!) turned out to be inaccurate. Why bother making predictions now?
I understand that writing predictions down and then reading them after a decade might be fun, though :)
P.S. One of my favorite non-fiction authors is Nassim Nicholas Taleb. That might have something to do with my scepticism.. :D