I also started at 16 and after 17 years was up to a little over a pack a day. I tried vaping and chewing but always ended up back at the same menthol cigarettes I started with. When I quit I chewed nicotine gum for 2 months and now I'm 2 months completely nicotine free. I still think about cigarettes every day and when people smoke around me it smells so fucking good. I still smoke a fair amount of pot though and that definitely helps. Driving is the hardest part as my work commute is 30 miles one way and I would chain smoke cigarettes both ways. I really hope I'm not still craving cigarettes 5 years from now.