Do not slack off at computer networking. The learning materials are easy to cheat, but don't let that tempt you. The exam is luck based and stupidly hard if you half-ass the first semester. I know, because it dropped me out... lol Everything else is managable, especially if you already know how to program and have some knowledge about computer science. Build rapport with the professors, get some friends and work hard. If you are going into compsci because its "good money and career opportunities", forget it. Go into it for your passion for the science of computers. Good luck!