Stopped on 28th November last year after many many attempts.
I used the product in the attached link along with nicotine patches. The patches I used for 4 weeks, 2 weeks 20mg and then 2 weeks 10mg.
The ePen I kept to a minimum, it was used mainly for a nicotine hit.
I honestly believe a big part of stopping smoking is mind over matter, as it is for any addiction.
https://www.govype.com/uk/e-cigarette-epen-starter-kit