I know it can be a difficult thing letting go after being with someone for so long, so I feel for you.
I think there are a few Paraliminals that will help with this one, including New Behavior Generator, Belief, and New Option Generator. They can all be used in a number of areas, so if you read the instructions on how to use them and state your goal for being able to move on. Self-Esteem Supercharger probably wouldn't hurt, either.
