If you really burn with desire, you will stop at nothing to try to achieve your desires. Reason helps to interpret the situation around you, to show you the possible paths you can pursue, and if you have the passion to pursue your desired end, you will strive for it, even if the path you have to take is long and difficult. If there is nothing in this world that inspires you, then snap out of it and reevaluate where you are in reality, or consider suicide.
Having said that, college is a great opportunity, but it is not for everyone (as is true of many things, anal sex for example). If you are walking down the collegiate road, then make the most of your situation by diving into the material presented and engaging your professors with questions after class/in their office hours. Put real effort into the work for your major; your major is something you must love, and if not, then you are doomed to being the paper pushing monkey with no love for labor.