Here's how I was successful. I smoked a pack a day of Marlboro Menthol Lights. When my employer banned tobacco on it's campus, I was forced to go at least 8 hours without smoking. I already knew the patches or gum wouldn't work, so I sucked on Jolly Rancher candy all shift. When away from work, I made up for the lost time away from tobacco and still ended up smoking a pack per day.
When I began vaping, I vaped as much and as frequent as I desired. I started on 24 mg nicotine. When I got a cig craving, I vaped more frequently. If that didn't stop the craving, I allowed myself HALF of a cigarette, and saved the rest. Same thing for the next time, vape harder and that didn't help, I smoked the last half of the cig. First couple of days I probably smoked 3-4 cigs total per day. Soon, the smokes became less satisfying, the vape became preferred over the smokes, and then the smokes started to taste nasty. At the end of the week my pack was finished, and so was I. I haven't had a cigarette, nor wanted one, since.
I recommend jumping up to 18 mg nicotine strength to help get you over the hump. I've cut my nicotine down by half to 12 mg, and currently I'm content at that level, as I plan to continue vaping at that strength.
I'll probably be in the minority here, but if you REALLY think you need a cig, try one. You've been without a cig for a week, it won't kill ya to have one just to remind you how nasty they really taste. If you got some laying around still, take a puff. You'll ptobably surprise yourself.
At this point in the game, it's not the cigarettes that you smoke, it's the ones that you don't.