Yes Gedalya. I have a simple eitza. Just stop. Period. You will have a miserable month or two and then you’ll forget all about it.
No Chesbonos. No “quitting”. No “weaning off”. No buzzwords. None of that. Just stop. Do not take another coffee. Ever.
Take it from someone who smoked rather heavily for 11 years. Last cigarette was Erev Yom Kippur 6 years ago, 2 minutes before the zman. Threw out the rest of the (almost full) pack and never looked back. I didn’t plan it. I just decided right then and there that this was my last cigarette.
Good luck.