Here's the biggest one of all.
I don't know if I want to quit bad enough
I don't want to quit.
Let's dispel that myth right now.
Whether you want to quit or not, if you don't decide to quit, you won't.
You do not have to want to quit to decide to quit. The two are not mutually inclusive.
What is mutually inclusive to succeed is the willingness that goes along with that decision.
If you aren't willing you are in opposition to your decision.
Yes, it's tough those first few weeks. Yes, it's especially trying those first 4 months or so, but, how long did you smoke?
Yes, you have to be willing to allow yourself to unlearn what you've done for so many years.
The physical addiction lasts as long as you are using nicotine but your brain rewires those pathways as early as a month after you quit using nicotine.
If that is the case, why would you believe that you can't let it go?
It's the memory of the feeling that nicotine gave you that is associated with what was going on at the time you smoked each cigarette for all those years that you are unlearning.