I need to improve my Spanish!?

I have been studying spanish for almost two years at university, I have had no previous experience before university so it is quite fast-paced. I am going to spend a year in Spain as part of my degree, so I need to improve my Spanish rapidly. I am good at reading and understanding written Spanish, but it is my listening skills and especially my speaking skills that I really need to improve enormously. I have been trying to watch a Spanish soap called "Fisica o Quimica" and I only understand like 50% of it haha. Any advice?