Entrepreneur
Can't help it.
The United States. (It doesn't have to be recent, does it?)
(1) Frustrating - The poor geographical distribution of knowledge and resources in US required to foster innovation.
(2) Rewarding - Knowing I'm right.
Believing their own hype.
Listen carefully to everything and everyone - look for clues.
Evaluate and re-evaluate everything you know, or thought you knew.
Never give up.