It's natural to vape a lot more than smoke, especially at first.
* There's less sensation to vaping (taste, throat feel, etc.), so people tend to overdo it at first.
* The nicotine alone doesn't feel like the chemical cocktail of a cigarette, so people try to overcompensate by vaping till they feel a nicotine buzz.
* Without having to step outside or take a break for a smoke, people vape more than they mean to because there's nothing obvious stopping them.
Some simple "fixes":
* Get stronger juice that leaves you satisfied faster. You'll start vaping less as you feel like you can go longer in between vaping.
* Put your vaporizer away when you're not using it, and focus on using it in little "sessions" like you would a cigarette. Partitioning your vaping into groups will make it more apparent to yourself how much you're doing it, and you'll naturally cut back.
* Get weaker juice and just enjoy it!
* Measure out juice for each day for a week, and force yourself to use less. If you purposely vape more and more each day, you'll crave more and more each day. That works just as well in reverse. Force yourself for a week and you'll naturally want less afterwards.
If you're anything like me, it'll go like this: you'll get the strongest juice you can to make getting off cigarettes as easy as possible. Then a month later you'll notice you're vaping like crazy and the nicotine is affecting your sleep. It'll be easy to cut back now, because now that you're off cigarettes you don't have that to mentally compare it to. Now I'm down to juice half as strong as I started with, and I finally vape as much as I want without feeling it the next day. I wouldn't have wanted to do that from the start because I would have been craving cigarettes at first too much.