>Allow yourself to be less than perfect. Many depressed people are perfectionists, holding themselves to impossibly high standards and then beating themselves up when they fail to meet them. Battle this source of self-imposed stress by challenging your negative ways of thinking.
>Socialize with positive people. Notice how people who always look on the bright side deal with challenges, even minor ones, like not being able to find a parking space. Then consider how you would react in the same situation. Even if you have to pretend, try to adopt their optimism and persistence in the face of difficulty.
>Keep a "negative thought log." Whenever you experience a negative thought, jot down the thought and what triggered it in a notebook. Review your log when you're in a good mood. Consider if the negativity was truly warranted. Ask yourself if there's another way to view the situation. For example, let's say your boyfriend was short with you and you automatically assumed that the relationship was in trouble. But maybe he's just having a bad day.