Some things to do when you are in a mood funk in no particular order:
1. Go for a walk or a run.
2. Call a friend who makes you laugh.
3. Get outside when it's sunny.
4. Listen to music that makes you happy or brings back good memories.
5. Watch a funny or uplifting movie.
6. Meditate or pray
7. Go to the gym.
8. Make an appointment with your therapist.
9. Have a good healthy meal.
10. Make your bed.
11. do yoga.
12. Practice smiling in the mirror.
13. Write in your journal.
14. Think of all the things that you are thankful for.
15. Call someone and thank them for being great.
16. Call someone and ask them for reasons they think you are great.
17. Look through old pictures that make you happy.
20. Spend time with animals or children
These are just a few things you can do, I am sure you can come up with more. :)