Another tactic for getting yourself out of a rut is to just try something new. The more different to your current activities the better. Something physical th

Another tactic for getting yourself out of a rut is to just try something new. The more different to your current activities the better. Something physical that involves other people is a good bet, but anything that strikes you as interesting is good. As a student you probably have access to loads of clubs/societies that do all kinds of odd activities, take advantage of this. Also, +1 to all the comments suggesting you see a doctor/counselor.