all I really want to do is build a house in the jungle

I'm currently in my second year of an Aberdeen University petroleum geology degree. The prospects seem fine if I am able to get a good degree (if I work harder - which I doubt), I just don't see how I can get the enthusiasm to keep going with this stuff. When ever I hear about other people seeing the world I get impatiant, can I hold out for the next 18 months? All I want to do is go away skiing for a season (like my brother) or climb some mountains and camp on islands of the malaysian coast (like a friend). I hear stories from these people and feel a need to dissappear from this gray city, can't wait until I finish....