I quit last year after smoking for over 25 years. It sucked big time. I never even considered vaping as I wanted to break the habit completely.
One of the best things that helped was doing the nicotine replacement therapy without skipping any steps/time (used the patch), and I also had a really helpful app on my phone that I would constantly (some would say obsessively) checked into every time I had a craving. I used one called Butt Out, but there's lots of stop smoking apps out there that can help distract you, remind you of your goals and have communities of like minded folks posting when you feel weak and need talking off the ledge.
Read Allan Carr's book (get it from the library). It helps explain what is happening when you smoke, why you want to smoke, and why it is soooo damned hard to kick the habit. And also great suggestions for dealing with quitting.
If you're technically quit, but still dealing with the cravings, then the following might help:
I would drink a large glass of ice water every craving, I chewed so much gum, and then switched over to altoid mints (loved the super burn-your-mouth mint effect). I got some golf pencils (those short, eraserless things you get to play mini golf?) since they had the same feel and weight as a cig and fiddled with them constantly. I also (and this sounds stupid putting this down, but hey, it helped me) used the cheapy ballpoint pen caps that have the slits in the top of the cap? I stuffed them with a bit of paper towel, and holding them like a cig, sucked air through them and the combo of the same weight/size and air draw (with the resistance from the paper towel to achieve this) felt like taking a drag on a cig.
I did not crave food or overeat during my quit, but I was a bitch on wheels for quite some time. And I had the minty-ist of minty breath. Must have gone through a tin of altoids every 3-4 days.
Avoid friends, locations, activities and even movies or such that encourage your exposure to smoking until you are super sure you're not going to slip up. I still get triggered seeing some of the old black and white movies where everyone is lighting up... damn, that still kills me and I have a twinge of "I MUST HAVE THAT" every time. But it is momentary and it passes.
And realize it is just like being an alcoholic... you can't have "just one cigarette" ever again, because you'll start up the nicotine cravings and it will be like hell quitting all over again. If you do try to quit again.
But the biggest thing that helped? I realized that I was retiring early and I did not want to be sick and die early due to my dumb choice of getting addicted to smoking as a teen. I was having health issues anyway due to stress and fatness, and made the decision to get my health and my body in the best shape possible, and smoking was extremely stupid if I was trying to be healthy in general.
I miss it still, not going to lie, but I'm over 1 year, 3 months out and haven't slipped up yet. And it's getting easier to forget about smoking. In the last year, I've lost a ton of weight, completely changed my eating habits for the better and learned portion control, and am working on adding in regular exercise to my life. Now when I'm feeling antsy or stressed I go for a long walk/jog and it helps.
Good luck on your journey - I hope you're able to get it under control and learn some healthy replacement habits that will change your life for the better.