Knowing how to move on is key, I think.
SO true. I think too many people don't realize the work that needs to be done BEFORE you move on. When you are getting caught up in a new realtionship you naturally start feeling better, and this is often mistaken for 'healing'. In fact, you have just started a new relationship in a mode that isn't your true self. That's why 6 months down the road, that one starts to crumble too.
I know it sounds like a lot of psycho-babble, but if you don't fix the things about yourself, that led to the failure of your last relationship, you'll take that right along with you into the new one. (yup, it takes two to make it work and two to make it fail)
You absolutely have to get yourself to totally enjoy your own company.....to be 100% happy to be alone. Adding someone to your life at this point is cream.