If you have a stutter you have a stutter end of conversation. The only way to not have a stutter anymore is to grow out of it; anyone that says they cured there stutter is just lying. Now what your saying is different you didn't cure anything, most likely the reason you don't stutter when you're alone is because you're more calm and relaxed and your speech flows more easily. And with family or friends it's the same reason. But that doesn't mean your stutter is tied to your anxiety or being calm or not; I mean it helps to be more calm and relaxed but that won't eliminate your stutter. It's the same with strategies they just help your stutter to be less prominent but you still have a stutter I mean look at some famous people they stutter but they've got it to a point where you can barely tell they do. What I'm saying is if you stutter you're most likely gonna stutter the rest of your life.