I worked at a bar where there was second hand smoke and I craved a cigarette for a long time, I even smoked a couple while I was drinking. It's a powerful craving, but I never had more than a few and I stopped. I still want a drink after almost 7 years sober (it's more like 6), it's great you came here for support that can really help. It's been so long I'm sure you have something like a mindfulness exercise or hobby you usually do to keep yourself distracted from it. Whatever you're doing, keep doing it. Just believe in yourself.