I think the 30 maybe is too much. I started with 24 and thought it was a bit too much at times though I smoked 1-2 packs a day. I have since gone to 18 and feel like I can vape as often as I want without feeling ill. Occasionally I have to vape a bit more to cure cravings, but I think less is better than more in the case of a poison. Good luck today.