break ups are NEVER easy, no matter what you will feel hurt, alone,
sad, depressed, but you can turn those things around. if she dumped you for someone else, chances are she has been lying to you or going behind your back for quite some time... 11 months is a very long time to be together and if she already has a back-up, you really should try to not be sad. to get your mind off her (seems impossible) try going out with your friends, spend time with your family, do things you want to do.