Sometimes you're flying high. Everything is going great! You've finished something that you've been putting off for a long time, or you just got organized, or a big order came in. Don't you just LOVE feeling like that? You are full of energy and those impossible tasks are just sailing off of your desk. You're to-do list is shrinking like a cotton shirt in a dryer.
On other hand, sometimes you're pretty discouraged. "How am I ever going to finish that project? How can I possibly do all of things that I need to do in order to get to where I want to be?"
Don't you just HATE feeling like THAT? It's hard to move a single piece of paper from one place on your desk to other. The easiest things look impossible to do. You are carrying a large stone around your neck and everything is an effort.
I think that most people are like that; highs and lows, ups and downs. Even most productive people hit a brick wall once in a while and wonder to themselves, "What was I thinking when I took on this project??"
Naturally there can be a zillion reasons why you are down: outside pressures, just lost a big customer or big deal, fight with a family member, illness or accident, etc. What separates men from boys, however, is how you deal with it. Sometimes you can help yourself when you're down by asking yourself one simple question: "What time is it?"
That's right! I'm willing to bet that when you go from a high to a low rather quickly it is a function of time of day. Here's why: when you are tired, everything seems worse than it really is.