Smoking remains there just like a car key until you get a different car or a new front door lock. It stays there going in circles just like your keys until you need to take one off.
Why do we stay in the circle of smoking? Because it's comfortable
People tend to be repetitive. Repetition tends to make us feel comfortable.
And there you have it.
This is why you must take your key ring, split the riings with your thumbnail, and, slide smoking off like the key that you no longer need.
It doesn't hurt.
Yes, it's uncomfortable but gettting off that keyring is allowing enough time until you are comfortable not smoking.
It will happen if you allow it.