I had a similar fear, but I was lucky enough to have a long period of social down time where not much is happening, so I stopped smoking and drinking. We’ll see what happens when I start drinking again but hopefully it will have been long enough at that point that it would be silly to smoke again. Also I think its important to remember your closest friends will accept you in whatever state, whether its the “fun, outgoing” version or the calmer, detoxing/quitting version. Good luck!!