I am so sorry to hear that! I know what a horrible emotional rollercoaster applying to grad school is, and how disappointing it is to not get in. I was rejected to 5 of the 6 schools I applied to before I heard from my 6th school, so my emotions and cognitions were all over the place!
Do you have a backup plan if you don't get in? Will you apply again next year? If so, one of my professors gave me some great advice I would be happy to share.