Nicotine withdrawal kicks in very quick which is why smokers take constant breaks. The anxiety, the grumpiness, irritability and anger you feel as a smoker when you are without nicotine will piss off your partner, make you seem difficult to friends and colleagues and generally just color your world in a dark way.
Juul pods helped me stop smoking for a short period of time but I became an order of magnitude more hooked on nicotine. I work from home and couldn't go more than 15 minutes without sucking on that stupid device.
I quit smoking cold turkey 90 days and it's made a dramatic difference to my mood. I no longer worry about being socially outcast or being judged for blowing vape clouds.