I have been on and off nicotine my whole adult life. Nicotine is weird fucking drug. Every other drug I do, it's obvious why I like it, it's because it gets me high and makes me feel good. Nicotine makes me feel shitty if I actually get "high" from it, I HATE the nicotine buzz. But for some reason I crave it like a motherfucker. It makes no sense, I also have never been physically addicted to it, except a little bit the last time I quit (just had a hard time getting words out properly, I was also withdrawing from opiates then so it might even have just been that). I used to smoke a pack a day and no withdrawal at all when I stopped. I can vape 24/7/365 for a year or more, the strongest nicotine concentration, and feel fine, better even, when I stop. But when I'm doing it habitually I get massive cravings for it. It's purely mental. It makes no sense to me, since I literally can't stand the buzz. It's an oral fixation mostly I think. Creepy drug, really. Whenever I stop, I have cravings really bad for like a week and then I barely even think about it anymore. But for some reason I keep going back.
I find vaping a LOT more addictive than cigarettes, because you can do it all the time, you don't have to go outside. I'll find myself hitting it first thing when I wake up and last thing before I go to bed, every few minutes the whole day. Even then I don'[t get any physical withdrawal at all. It's weird because my good friend gets massively anxious, can't sleep, gets super pissed off, and feels like his skin is crawling and can't get comfortable when he doesn't have it. He says it's the worst withdrawals of anything he's experienced.