I think quitting smoking, is much like an alcoholic quitting drinking - you're always a smoker in recovery, even long after you've quit. My father in law, who quit smoking some 40 years ago, would always encourage me to smoke in the house, as he still craved cigarettes and loved the smell. Some people I know can make the transition to vaping instantly, while for others it takes time, trial, and error before finding a set up that works.
The nicotine isn't an issue (for me anyways). You will become dependent on any chemical that you put into your body consistently (like the estimated 12,000 chemicals in analogues), not just the nicotine - which I've read is completely gone from your body in the first 72 hours.
There's 3 facets with the addiction - physical, chemical, and mental. The chemical addiction is the weakest of the three - the physical habit of raising your hand to your mouth several hundred times per day, and deviating from routine, is the hardest to break. The mental addiction of depending on stinkies to be there for you in times of need, is also tough. I find that vaping satisfies all three factors.
The only reason I use nicotine is for the throat-hit, otherwise I would vape 0 nic!