Seems like good advice all around. I would like to add that a healthy dose of narcissism is quite helpful in getting over a relationship - just don't go overboard. Just start telling yourself "I'm the shit" on a regular basis, like a workout routine. Whether you believe it or not at first, eventually your ego rebuilds itself. Also helps to surround yourself with people who share the opinion that you are, indeed, "the shit."
Oh, and alcohol is definitely a depressant. It will just make your outlook worse.