Hello there Bridget. I hear you! I am in the raw early days of post breakup...and it hurts like hell...but I can tell you from experience it does get better and it will not hurt like this forever. Reach out as much as you can, friends, family, trashy books to take your mind off things, comforting films (that don't have any romance in them...yuck!)...make a list of all the things that really ticked you off about your ex...and a list of all your needs that werent being met...and a list of all the wonderful things about you that he didn't appreciate...and finally a list of what you will get from your next relationship. I know this will be difficult, but I did it last night and it does help. It's from a great book called 'hes scared, she's scared'....
Hang in there girl...you deserve better.