Hi, @FunkyMonkey. Welcome to the train! You have found the right crowd of folks to support you in your forever quit. I, too, once lit up a cigarette on the way out of a cardiologist's office... and smoked the whole time I was on a holter heart recorder... and through dozens of sinus infections and bouts of bronchitis.... It's a miracle my junkie brain didn't explode from all the cognitive dissonance.
I am 51/2 months into my quit and I used NRT to get here. The patch, supplemented by occasional lozenges or gum. I chose the patch because I had to quit in a hurry without time to gear up, because I was a very heavy smoker and needed to uncouple the physical/psychological dependencies, and because my stomach cannot handle a ton of oral nicotine. As others have said, NRT does indeed prolong the pain of withdrawal. I ultimately accelerated my step-down to be rid of the misery sooner. But in the beginning, the NRT got me over a hump that I hadn't been able to get over before, so I'm grateful. There are a lot of ways to quit, pick whatever method works for you.
The general guidance is to start with the higher doses of NRT if you smoke your first cigarette right away when you wake up in the morning. For the first few days I used a 4 mg mini-lozenge or gum early in the day but then used a lower dosage in the afternoon or evening if I needed support again. If you are having cardiac stuff it is a good idea to check in with a doctor about your NRT plan. But still be prepared to listen to your own body and adjust - use less if you feel funky, either by shortening the duration or the dosage.
Also, definitely have a plan for other things to do besides NRT to get you through the cravings. The urges will be intense, and NRT alone is not enough ammunition. I needed many different tasks, physical exercises, things to do with my hands, new rituals, etc. I love your new watchband and nail polish approach - get creative! I needed a list of at least 50 things I could do instead of sticking something in my mouth and setting it on fire.... because when the cravings hit I lost my ability to think for a while. But the misery passed. It got easier. You can do this, and there are lots of people here who are ready to help!