This is as long a post I have made here, and do note it is all IMVHE.
Good old 'powers that be' pushed me with the (upcoming then)TPD laws and I took a leap of faith.
I had tried vaping years ago, and whilst it worked the devices i had were intermittent (to say the least) and I fell back to smoking.
This time I walked into local vape shop and luckily the owner was a decent chap. He sold me a pretty good set-up at good price... and it just flat out worked. I dumped the ciggies there and then.
Must admit that in some ways it was easy, I didn't miss the ciggies at all, but i did feel the effects of their demise.
Firstly my chest immediately felt great and just kept getting better, I could run with the dog!
Then I started getting short tempered and losing my 'rag' at the silliest of things.
Then I got chronically sleepy for a couple of weeks.
For sleepiness I just slept as much as I could.(12-14 hours a day)
For the grumpiness I trolled random people on the net (not in places I have respect for though!)
About week 4 now and the sleepiness seems to have lifted this last two days, been at the decorating since 6AM today.
The grumpiness has eased too (much to the peace of the net!

).
One thing I have noticed...
I can go without vaping for hours(6hrs) without any problem, even after meals...
...but... and it is very interesting to me, I can take my mind to a place of ciggies(especially after meals) imagine myself rolling a ciggie, sitting back and smoking it. This will trigger a craving that wasn't there before, and I can push the feeling away, laugh at it being illogical and insubstantial... and away the craving goes.
Anyhoo, the upshot is the more weight you give the craving the more power over you it has.
A good vape will always satiate the nic craving, anything more is you yourself putting you in the smoking picture.
Accept we are essentially an illogical animal at heart, accept we have illogical drives. Recognise the craving as such illogic, laugh at it and yourself, and away it will go.
As I said IMVHE.
Good luck with it, stick to your guns and you will soon be in clear skies and calm waters... all with better health and well being.