Want to move to Zyns to taper, any recommendations?

I was heavy smoker, managed to quit by tapering it down by one cigarette a day (went from a pack a day to one a day to one every second day etc).

Vaping has been a nightmare because I don’t have an end of the cigarette to measure. Sure you can do puffs but it hasn’t worked so far.

I vape heavily, go through 9000 Alibarbar a week.

Any recommendations on strength of Zyn I should try out first?

I genuinely want to quit so I know it’s just pure substance addiction now and I can’t go cold turkey because my withdrawals are next level and I don’t want to put my family and work through it to be honest.