People need people
Take brisk walks, go to more movies (now that you aren't detoxing halfway thru the show), start to exercise
, meet new people, get back in touch with old people, find hobbies.
Lots and lots and lots of things! congrats on the decision to stop, and hope you follow through and succeed. The billions of people in the world who do not smoke (and most have never smoked) do find ways to keep busy!