[sunshinelackof]

General workplace advice: Know how much you want to work. Don't get exploited into doing extra work. Do your best not to take work home. Your boss it typically useful, but ultimately he's not your friend. Keep your dignity and try to have a life outside of work.

Other than that, know what interests you and what doesn't interest you. Don't be afraid to reevaluate your interests over time. Don't be afraid to ask questions. If you think you're correct, be confident and say it.

Some people will say a breadth of skills is important and they are. But don't seek undue skills just because people say they're important. Do what interests you and you'll find a way to make it work out. Though in general, having a base of knowledge in complexity, algo, and data structures will help you find a job quicker. Every computer science program will teach this though.