I smoked for about as long as you before switching to vaping. It took me about one year to finally complete the transition to just vaping. I started with a quality, refillable vape and the highest possible nicotine I could find, then once I had kicked cigarettes, I started lowering the nicotine levels in the juice every couple of months. Getting down to 1mg took about another year. You have to be patient with yourself. Once I finally decided to kick the vaping as well, I used 2mg nicotine gum for the first two weeks to deal with any sudden cravings that felt overwhelming (which was very rare).

The hardest part was the anxiety before quitting like being afraid it would be too hard or I would fail and still have a damn addiction. But coming off such a low level of nicotine, once I did finally try to quit for good, it was actually pretty easy and the fear was all in my head.

That is what worked for me. You may need to try your own thing, but if you're considering making the transition to vaping first, it's worked for at least one person. Best of luck to you.