College, after sophomore year, tends to be less about the classes and more about the people. Choose as many classes as you can solely based on the professor's character/infamy. Those people will inspire you and help you choose what is interesting.

Also, try to see as much of the world as possible, and this doesn't just mean traveling. I'm thinking about people like this person at TED: http://www.ted.com/index.php/talks/view/id/233 - try to find these people and get connected with what they're doing.