gretagirlguide:

1. The easiest way to change a mood is to start doing something for someone else. The human spirit loves to wallow in self pity, but we all know that doesn’t get you any where. Instead, shift your consciousness to someone else and let your thoughts of doing something for someone else occupy your mind.

2. Use creative thinking and activity to change your thoughts. If you allow your mind to go to a creative place you more than likely won’t have any room left to think of your troubling mood and can use the creative process as an outlet.

3. Make yourself a list of ‘mood busters’ to get your thinking back on track when you feel a mood coming on. That way you will always have a go-to mode of thinking to relieve you of a less than desired mood.