I have a hard time leaving my "new" comfort zone to go to another situation, even when I've been in it before. A month break is a long time. Can you imagine yourself in the future, on March 15th or something, create a picture you can move toward? What subjects will you be taking this next semester? Do any of them really interest and excite you (since they are in your major). If you can look ahead, just a little way, that can help pull you forward over this scary transition patch. I like to think of it as a "bridge" between where I have been now, for awhile, and where I will be comfortable in 2-3 weeks/months time.