Most quitters are apprehensive before they quit. Much of it is just plain old brainwashing from snippets we've heard throughout our lives about quitting.
Then they start amplifying those snippets with thinking about how it's going to be based entirely upon those snippets.
Then they begin their quit.
It's like building on sand, and, most will soon give up and disappear.
This is why you learning what we tell you and putting it into practice guarantee's your best success.
Drink it in, Start practicing what we tell you with the self talk and give it the time it takes to dissassociate your connections to smoking. There's alot of them. :-)