First of all,

sorry your having a bad day.

Oh I have days like that. I just want to be left alone and just tend to myself. But only for a time. We are social animals. We have a need to be around one another.
Do you see a therapist? If not, Im telling you, it helps so much.
In the mean time, take a hot bath or shower. Put on a cozy something, pop some popcorn, sit down and watch some TV. Tomorrow will take care of itself.