So try that. Go a week without smoking and see if you can do it.
I roll the occasional smoke after lunch but it’s less than one a day. That’s how I know I’m not addicted: I go multiple days between having a smoke, I can smoke with friends on the weekend, but then not smoke by myself on weekdays. Try that to know if you’re really not addicted.
Check out the Silo series by Hugh Howey. AppleTV’s show did the first half of book 1 already, but the books are still better. Great writing and a pretty easy read.