Hi. It's hard to pinpoint. For me the biggest 'craving triggers' were coffee and alcohol when socialising. A cup of coffee in the morning just wasn't the same without a smoke, and alcohol kills your willpower so it's hard not to light up. Cutting back on those helped a lot with cravings. But mostly it was a lifestyle chamge - getting back into my gym routine and trying to be more healthy in general. E-cigs were just another addiction at the end of the day, but they did help a bit. Just take it a day at a time.