I'm going to be a part of the film editing team and I am an amateur, help!?

Okay, so I am a college freshman. When I heard about our school's film making team, I decided to join the team's editing crew. I am just getting a bit nervous 'cause when I was interviewed by the club's adviser, I found out that the film editors' job is one of the hardest, since most of the movie's outcome lies on their hands. I don't have much experience in editing films, I just edit some clips and stuff but films? No. I guess I only have a month left for learning and I think that's kind of a short period to be good at video editing because its scope is so broad. Our adviser told me that the head editor will teach me stuff and help me become better but I don't want to be a freeloader in the team, I want to help a lot, I don't want to cause troubles or delays regarding the production and whatsoever. I am also willing to give my 100% effort for this. Could you please help me? What tips can you give? I am using Sony Vegas Pro 9 for editing.