Just something that comes with age. About age 25 I stopped giving a shit about stuttering in front of strangers. Rarely does it get to me now, I’m 27. What helped me was making a point of going out to some social place atleast once a week, if not for a couple hours. Explore your city: try a new bar, new restaurant, and just talk to someone about anything. Go to a deli and talk to the butcher about meats and cheese, who gives a fuck? Practice conversing with strangers, it does get better.