Good luck friend, I quit smoking 5 months ago and I've noticed that the random cravings have completely dissapeared a few weeks ago, I made it.
First week feels like crap, but it gets so much easier after.
It feels so good to be free of this shit, now I only have to tackle my porn addiction.
I quit smoking over ten years ago - smoked since I was 11. I still get super rare random cravings but when I give in, it's really, really gross. It literally only lasts for like a single drag and then ew. Good luck! This is the hard part, I promise. Once you're past your first month, it gets easier. First year, so much better. First five years, like it never happened.
Please read the Alan Carr book, lots of people have found it a really effective way of changing your mindset around smoking, which is one of the hardest parts of breaking the habit.
I quit nicotine this year. Wasn't a smoker, but used nic pouches for 5 years. It was definitely the hardest thing I have ever tried to quit, but I'm so glad I did. Just hang in there. It didn't stick my first time, but I got there eventually. No cravings at all anymore, don't think about it, and I feel so much healthier physically as well as mentally.