Also, currently I aspire to become an elementary teacher (a tutor like you :D). So, I know the struggle of teaching language and knowing the correct sounds etc. but due to blocks being sometimes unable to speak myself. However, the children dont ridicule me. I just put it out in the first lesson that I might in rare cases face some problems in articulating correctly and that I will then just take my time. Sometimes they ask about stuttering and I tell them what I know to sensibilize them for this issue. Kids are wonderful students for stutterers I suppose maybe in difference to teenagers (this can not be generalized I guess, but its what I think is true.) ​ Best regards!