Worked hard for 10 years in various web development shops, started a company with two of the smartest people I met during that time, sold it, worked through golden handcuffs, and had a nice exit. Now I live off of interest from fixed income investments and am currently looking to pivot my career from web development into computer graphics/games/VR since I think a revolution is coming. I love programming and don't need to work but really want to build cool stuff. In broad strokes I'm where I set out to be when I graduated in college -- I didn't know the tactics but I knew the strategy. I'm in my early thirties.
This is probably the most important book you'll read at your age:
http://www.amazon.com/The-Millionaire-Fastlane-Wealth-Lifeti...
The title sounds cheesy, but it's a really good book in reality.