My friend did it through the NHS smoking clinic - patches and checkins.
For me, I first read Allan Car Only Way To Stop Smoking which made me understand addiction. Basically nicotine is out of your system in 48 hours and the rest is psychological.
I then tried, so I would chuck all the stuff out. Then I would crack and buy a packet. But only smoke one and throw them away. I mean in a public bin away from my house. This was expensive!! But stopped me slipping back.
Then I think from stopping so many times I had learned what helped.
-Pick a non stressful time when you do not have too much coming up
-No social events with alcohol in immediate future
-6 weeks is the cut off, if you get to this point you have done all the tests!
-have lots of nice food in and accept this may become a crutch initially. Lots of fruit. Also appetite comes back so food will taste amazing again.
I got a calendar and ticked off every single day and vowed to keep going until I quit. So I knew that if I had a cigarette on day 12 I would have to start the ticking again! I knew vaguely if I could get to 6 weeks then I had done it as I could usually get to a month then I would waver and think oh I cracked it, I will just have one!
So yes I do agree that your fundamental thing is the will to do it and it sounds like you have that. I think you just need to tell yourself that you are stronger than the cravings and you can do it. You can do one day without having a cigarette in the morning. And if you can do that for one day, then you can do it for another day, as it is just repeat repeat repeat until the craving is gone.