I've smoked for over 20 years, my wife about the same. We had tried switching to vaping about 5 years ago when all that was out there, was vape pens and our success was...well...less than stellar. We tried again about three years ago and never went back.
For us, it was the hardware that made the difference AND the new influx of juices. What you vape with, makes as big a difference as your mindset on quitting. Don't be afraid to try new flavors and equipment until you find what works for you. My wife and I discovered that it can take some time to get comfortable with it, but it will happen.