Some days you are the tarsier and some days you are the cricket that is about to be the tarsier's lunch.
According to U.K. psychologist, Dr. Cliff Arnall, the Monday closest to January 24th is the most depressing day of the year.
You can be miserable today if you want...but I prefer Abraham Lincoln's point of view:
"People are just about as happy as they make up their minds to be."
So, cheer up. Life is good. Be happy you're not a cricket ;-)