When people ask me how vaping is working for me (with regards to quitting smoking), this is how I explain it.
There are 3 main addictions in smoking: the nicotine, all the other crap and chemicals in a cigarette (very generalized), and the hand-to-mouth. The easiest way to quit smoking is to break those addictions one at a time. When you vape, you aren't ingesting the thousands of chemicals that are in smoking. The first addiction you break is all of the other crap that is in commercial cigarettes, while still getting nicotine. This is important, because nicotine is very addictive on its own.
After a while, you can reduce the amount of nicotine that is in your juice. I make my own, so I step down to whatever I feel comfortable with. I vape 1mg and 2mg nic. Eventually, I will be at 0 nicotine.
And finally, breaking the hand-to-mouth, a behavioral addiction that isn't necessarily harmful. It's yet to be shown the true effects of vaping over time, so we shall see if vaping itself is something you need to quit. At that point though, replacing vaping with twizzlers/blow pops/tootsie pops shouldn't be too difficult. Going from smoking to twizzlers, though, I failed every time. Stopping vaping from 0mg nic, in theory, would be 1000x easier than quitting smoking cold turkey.
Disclaimer: The above is 100% my opinion.