I've just completed a degree in "Video Production & Film Studies" and one of the modules was Screenwriting.
An absolute 'must' for you is to create a portfolio of your work and get to those film festivals and start networking. It's not too early to design a business card. Give one to just about anybody you meet!
Also, why not search for degree-level students, studying for a degree similar to mine. They are a talented lot of people, but screenwriters seem to be few and far between. Perhaps your work could be used for one of their practical assignments. Have a search for some forums online.