First: Wallow for a bit.
Then: go out and keep living your life to the fullest!! A break-up shouldn't get you down, no matter how you felt. As it was said on here, its' better now than further on down the line. You have your whole life ahead of you, just live life and maybe you'll find mr. right when you aren't looking.
Sorry for the break-up and with time, you'll heal.