why?

Seriously, I have had it today! It has been a rough day & it doesn't help that I am overly emotional. Between work being crazy and me dropping a whole gallon of milk on the floor in the pre-k bldg. to cleaning up the one bathroom because the washing machine flooded. Good times! NOT! To my sister calling me and hanging up on me to getting a text from her and me currently ignoring it! It has been rough! However, in the midst of that I have this one thought running through my head that says"Rest in me!" I know that is a bible verse somewhere because I "know" I read it but not sure which one. I am trying to rest but it is getting harder and harder to do! Ahhhhhhhhhhhh!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
I just don't know!