When you first quit smoking, there is a lot of stuff going on...including your brain sounding alarms because chemical levels are dropping. I vaped 24mg/ml nic e-liquid for about 2 months after I quit. I started with a CE4 and quickly went to a Ego C Twist...which I still have and use as my backup. When I upgraded to the istick 30w and the Kanger Subtank Mini, I was at 18mg but it was to much and I had to drop my nic level down to 12mg. Since I live in the desert and drink a lot of water anyway, dehydration was never an issue with me. I will probably be chastised for suggesting this, but if it's that bad, maybe you should consider being a dual user for a short while...kind of ease into it until you get more used to vaping. If you can cut out 5 or 10 cigs a day, hey, it's a start. I was an unrepentant smoker...45+ years. I have been off cigs for 3 1/2 months. You can get there, you just have to find the right path.