Hey, I'm Jacob MacDonald! I'm a novice Lisp programmer and student, and I'll also be travelling for the first couple of days of the jam, so my expectations are super low. That said, I'm way more excited than I am pessimistic. This should be a great learning experience regardless of my individual outcome.
Welcome to the Jam! :) And welcome to the wild world of Lisp. It's quite acceptable to finish a little bit late, especially if other obligations eat some of your Jam time. The idea is to learn, share what you've learned, challenge yourself and create something interesting! Keep the group posted about your efforts, and come to #lispgames on freenode IRC