It's okay not to be okay. It's fine not to feel happy ALL the time, not to smile all day long. It's okay to recognize that sometimes we are not feeling good. It's okay to allow the feeling of sadness.... experience it and listen to it.
Every time that I have felt sad, I have invited change into my life to try to overcome the feeling. Journal and write a lot, phone a friend or someone you can talk about what you feel. Allow yourself some time to rest, don't try to be super productive.
I think we are trained, or we are tricked into believing that not having a good day it's a bad thing. But let me tell you that it is okay not to be okay.
