Don't worry... use this as motivation to work harder and to show them you're worth more than what u're given.
When I applied to university out of highschool, I was not accepted to any university. I thought my life was doomed but I was also angry at the schools and at myself. I did not work hard enough but I know I can do it and that the schools are making a mistake not letting me in.
I signed up for night classes for the courses that I would be taking if I were in that university's first year. Then after that first year, I applied for direct entry into the second year and I got in. I did not waste any time. I had to show that I am able to do this and they made a mistake not letting me into their university. In the meanwhile, a couple friends and I started a business club and we became the 5 national finalists that year. (we lost but accomplishment none the less)
I graduated last year in pretty good standings. Just a little shy of getting a distinction but good enough to get me to do my masters here in London.
I knew life would have been so much easier had everything just gone smoothly. However, looking back, that was a much needed kick in the butt. At that time, I was very sad and didn't know where to go but I realized that if I stopped then, that would have been it. So I just kept going...
So good luck, keep your chin up and show em what you got!