Sort:  

This mood will go away soon.
Jot down things which are really really make you feel that way.
Next day read & rub it off & let it go.
Next day write things you could have done better.
Next day you write things you will do to set things right
Next day you write things you want to do to make you happy
Next day you write things you want to do to make others happy
and Next day, you'll realize, life is so so short to complete all of it.