When I was teen I hated speak front more than one person. It's depend how much time she or he need spend on one word to express. I didn't like when someone stops my sentence mostly, one word for correcting is enough I think to continue if won't helps, you can just talking more to avoid collisions. Thank you that you ask One year is enough to cure stuttering if it is. I have more than this mixing with emotions so cup of cafe or tea is appreciated