Loneliness of the Middle Distance Runner

So the half marathon is this weekend.  I think I am ready.  I have run 10 miles.  I bought an energy bar.  I downloaded the radio boradcast of the Saints superbowl for diversion purposes.  I think I have addressed any chafing concerns.  I have a hotel.  I have a number.  I think there's nothing left to do.  I hope I don't die.