Exercise can really help stress, anxiety and depression.
Exercise is probably one of the most verifiably proven ways to help beat depression. It may be the last thing you feel like, but it is in fact tremendously beneficial.
You know that stress is linked to fight and flight? Well, why not work off some of that excess stress by brisk walking or even running, it is after all what your body is gearing up for, so USE that stress to push yourself and get some exercise.
Why not just put on some music and dance around your living room, it will help.