I quit smoking a year ago after smoking daily for about 15 years. I noticed I was getting a lot of anxiety and paranoia which ultimately made my stuttering worse. I just wasn’t enjoying being high anymore so I decided I needed to quit. I might smoke again in the future but honestly my life is more peaceful without it. I still got occasional anxiety but no where near what it use to be or as extreme. Definitely not paranoid anymore. I’m also not avoiding social situations anymore which honestly helps my mental health. With my emotions more in check my stuttering definitely has decreased but obviously it’s not gone.