Often times, I have found that the best cure for these kinds of feelings and situations is to get out and do something for someone else. Being generous despite our current status.

Taking a moment to decidedly focus on something other than our own situation widens our perspective on life and gets our minds out of the mental death spiral of fixating on our problems. Being positive doesn't have to be just about how we view our own life, it can also mean choosing to do something kind and meaningful for others even when we probably don't feel like it.