I've found no matter how deposed or happy I am, my laziness always seems to win.  A new task or project I'm excited and motivated about comes along and I jokingly pass it off as too much work. If the same thing happens when I'm depressed, then it's what's the point in doing it anyway.  Then I usually get more depressed because nothing got done, then I usually blame others.  I know it's me being lazy, not sure how to handle it.