A study by psychologist and author Richard Wiseman reported that people who were asked to remember something good that happened the previous day got an immediate 15% boost in happiness. (Don’t you love how precise social scientists pretend to be?]
ACTION: What’s one good thing that happened to you yesterday? If you have trouble remembering, jot down good things as they happen—I have a hunch that would be another great happiness-booster.
If you are unhappy about something in particular, for instance that you're not making the quick progress you'd hoped for when you started a creative project, think back to how excited you were to start it, and how much you will enjoy it again when you get past this rough patch. Remember times in the past when you persevered and it worked out well.
You don't have to do anything fancy, just remember how good life can be, even if it's not so great right now. If you need help, consult an expert: a baby, a kiteen or a puppy.