There is no way to stop stuttering completely but there are ways to limit it. Strategies are important for doing this but call me schizo but the “stutter knows you” so you can try prolongation and no change occurs. Try learning other effective strategies I think the community can tell you what’s good for them. There has been people who stopped “completely” then they have a relapse that hits them like a truck but these strategies can lower the amount of damage done even though it’s mentally draining. I relate with you on the family party that no one stutters and I’m told that I just gave it to myself when it’s impossible. Even if you stutter keep up the talking and if they look at you disrespectful then screw them. Hold those who are respectful of your disability close to you.