It’s super hard to quit but I’ll tell you what helped me. I got altoids and every time I wanted a smoke I’d eat a mint. If I still wanted a smoke I’d eat another mint. At break I’d go out with all the smokers and I’d eat a mint. Driving home I’d eat a mint. It took a few containers of mints but I eventually got sick of mints (and cigarettes). After I quit I would still try taking a drag off a random cigarette and I absolutely hated it. Not sure if I rewired my brain or what but I was able to stay off the smokes. Good luck. You got this.

Pro tip: take your smoke money and save it in another account or a piggy bank or whatever. You will be blown away about how much your addiction was costing you.