Probably you need something with higher nicotine. I started using Elf Bars on the go because carrying a mod around is a pain, and I felt obnoxious blowing big fat clouds in public.

Elf Bars are around 20 mg and would get me through the day, but I admit I was jonesing after about 8 hours. You can get nicotine salts that are around 50 mg, so you won't want to hit it so often.

For reference, I smoked and chewed for over 25 years, and when I quit chewing I went up to 4 packs a day for a while.