1. Buy sliced ham. 2. Put in microwave and heat. 3. Pull pants down. 4. Wrap warm ham around dick. 5. Stroke 6. Say her name. 7. ???? 8. PROFIT! No seriously, there's nothing you can really do. So it's best to just let them go away on their own. It might take weeks, months, who knows.. The only thing that might distract you from her would be other girls. But that's not always the best thing to do.
I know how you feel/felt man. I just got out of my last relationship about 2 months ago and it was the most serious relationship I've had my entire life. I can say that I still care for her, so thats something I didn't outgrow. But you just need to give it time and realize it's not the end of the world and things will get better. This is just how you grow in life. Trust me, everything will be fine. Like all things in life, it'll just take some time. I agree with what Burning Phoenix said, as well. Thats just the kind of person I am, though. I am friends with virtually all my exes. Just remember things do get better and you will grow from this.
I am going through it right now. Basically taking the time to let it pass. Not communicating with that person for a while helps a lot. Also just occupy your time as much as you can so you can't just chill and think.
change your name, move to a remote island with a population of about 4. maybe 5.... and. then. bam. you're ------ed. but seriously.. just gotte find someone else dude, i've been there beofre myself, pretty much the same that happened to Dem, happened to me. just gotta keep ur head up and keep looking forwards.
They said you will only be able to say you've truly moved on when you know you've already accepted the fact that they're no longer yours. Live your life. You can always ask for advices but at the end of the day, what would matter is still how you would free yourself from your feelings for her. Live. Breathe. Enjoy. ^_^