Definite case of the December blues. Most people won't have made friends for life yet, it's just acquaintance making and getting your guards down before christmas.
See how you feel in the next term, and realistically ask yourself if you can see yourself writing a dissertation on this subject. Remember that the first year is extremely primitive stuff to make sure everyone is on the same level, and isn't really a good reflection of your course, it's done to encourage the weaker students to drop out.