Forget about it. Oh you should distribute the paper: make it a technical report; email it to friends and family; put it on your web page and send it to an archive site. But don't keep working on it. All the tension you had getting the paper finished for the deadline needs a release. And no matter how much effort and time you continue to put into it, your paper will never be perfect.
Instead catch up on the todo's you've been ignoring. Say hi to the friends you have deserted while you bunkered down working. Take some time for you: catch a movie; eat a slow meal at a nice restaurant; take a walk.
Afterwards get back to research so you have another paper to write for the next deadline. You know you have successfully put that first paper out of your mind when you get caught off guard from the email from the PC chair letting you know your paper is
- accepted: Great. Now you have to fix the paper up again for the proceedings deadline.
- rejected: No problem. Now you have to fix the paper up again for the next conference deadline.