(no my OC, I am attempting to help spread this that I saw first on https://programming.dev/post/33666663 because I think it helps to know that it is not too late to make changes even for major things like smoking and our health!)
I stopped smoking cigarettes at around 22, but picked up vaping and a vaped until I was 29. I quit vapijg one day out of the blue, just dropped it, I was so tired of having difficulties breathing, since my throat was always dry and swollen and my chest was heavy, likely a ton of nasty in my lungs.
It's been 3 years now and my chest and throat are so much better. Being able to breathe rocks.