I too get overwhelmed easily when I think of everything I have to do. What helps me is to decide just what I need to do in the next 2 hours. Maybe that will help. If you are falling into an episode of depression, try looking for the not so obvious stuff, like have you eaten? too much caffeine? Are you making sure you are getting enough sleep. You have to take care of the body or nothing else will work either. Hope it all goes smoothly for you this weekend!