I have been through that. I made a decision. For me it was easy.
I read about a good way to think. “I am not quitting smoking,I only postpone the next cigarette “. Olof Palme said that, one of the smartest politicians I have ever read about.
I used a hand squeeze ball, as well as telling myself "You are no longer a smoker" to get over it some 20 years ago. And you will feel better, taste more, and have better endurance and and energy over time.
It's the single best thing you can do for your health!