Earlier quoted context omitted.
The strategy that worked for me: 1) Find a flavor of e-liquid that you like well enough to use regularly. 2) Start off at the nicotine concentration that most closely replicates your smoking habit (for me 18mg ~ 1.5 packs/day) 3) Continue vaping at each concentration for a minimum of 2-3 months to ensure you are fully acclimated to one level before proceeding to the next. 4) Slowly reduce the nicotine level over time…
I'm currently stuck on 3mg, and have been for over a year. I followed almost the exact same steps as you, but found as soon as I switched to 0mg I hated it and quit vaping all together.... then went back to smoking a month later. I like the chewing gum idea. I'm not necessarily an anxious person, but I always need to be doing something. E.g. if I don't have my vape in my hand, I'm chewing my nails. Really sucks.
Everyone is different. The strategy that's ideal for me may be wholly unworkable for somebody else, but we seem to be in the same ballpark.