Try vaping tobacco juices or non-sweet juices. When you have the right juices you should feel satisfied after some number of drags. When I started I had this one Peach juice that never said stop - I overnicced myself on it. but I could put down the tobacco flavor that had more throat hit.
And my solution to not vape constantly is to put the ecigs in another room. I have very little willpower. But If I leave the ecigs in another room then I have to get off my .... to go vape, just like I had to with cigarettes. That will keep you from vaping constantly.
And if your ecig does not satisfy your craving, try a better ecig.
I don't think ecigs take longer to get into the bloodstream. There have not been good enough studies. I think there was one study where they didn't measure the blood nicotine until 15 minutes later. BTW Vaporized PG is what hospitals use to deliver inhaled medicine.
What else - ecigs do not have the 4000 chemicals, carcinogens, MAOIs, carbon monoxide, tar that analogs have. Ecigs do not give you a buzz because you are not breathing carbon monoxide etc. Nicotine is a skin irritant and ecigs can be irritating if you use medium to high nic in 100% PG liquid - if you get a sore mouth, tongue, throat, lungs, then try juices with some VG in them.