Breakups are so hard man I feel you...
But this is what I think is the best way to move on.
Throw away EVERYTHING that you have that reminds you of him that you don't actually need. Block him from facebook, delete his number, photos, EVERYTHING. You don't wanna be reminded of him. DO NOT call him.
Then what you do is sleep with a bunch of other guys. One night stands. There's no shame in it despite the social stigma for women. That's what I think is the fastest way to move on from a break up. If you don't wanna do that for whatever reason that's fine, but the point is you wanna spend as much time as possible with your friends. Stay busy. Practice more, start going to the gym, find a new hobby. You need distractions.
It's going to suck dude
I agree, actually. Stay busy with doing things you enjoy to do. Remove every sign of Whatshisname. Only think about the good times you had together, without bitterness, without the agony of it being over. You have your memories; let them be your treasure. That is much nicer than burying yourself in bitterness over your loss.
Sometimes I think it strange that we pity those who had love and then lost it, while we don't pity those who never had love at all. Like the loss is more important than the moments of having. Like the joy of the good time is nothing compared to the bitter ending. No, I don't get it.
Remember, the only person that you will have to live with all your life, is YOU. Therefore, you must love yourself very much. Enjoy your own sole company. Enjoy friends too, of course. If you are bored when you are by yourself, it is a clear sign that you don't like yourself enough. But if you love your own company, congratulations, you will never feel alone again and you will never let someone else decide your value.