Going at a relationship rescue blindly will only serve to point you in the wrong directions.
The reason you need a strategy in place is because it's such a sensitive time and emotions are running high.
You really need to think about what outcome you want and then act accordingly.
But know that your ex is probably on a different level than you are, with regards to getting back together.
If you are the one that is yearning for him more than he is for you, he won't be as receptive to your actions.
The more he feels that you hurt him, the more he will be hesitant to reconcile. Trust is huge in a relationship and it is what is needed again when two people want to get back together. Trust can be built back slowly again into a relationship.
However, the first step is for him to trust that the relationship even has a chance to stand on its own legs again. Let alone that he won't be hurt again.