I'm sorry to hear about your heartbreak.
I've been there too.
The thing NOT to do is sit at home and cry. That may be all you want to do right now, and that's fine... but after a while, you will want to get out and get yourself distracted. Spend time with your friends, go shopping, take up a new hobby, etc.
Don't do anything stupid, either, like crawl into a bottle... not that you would, but it should be said.
Chin up. "It's always darkest just before they turn on the lights."
