I'm sorry for the inconvenience.
We don't have a means to undelete a deleted user at the moment. But, since the majority of data is ultimately linked to all the content you have provided to the site, reversing this mistake was just a matter of reassociating all of your former posts to this new ID that you have created. Which has already been done (and you can thank Nick CraverNick Craver for accomplishing the deed).