Hey i have same experience during high school and my english teacher just did the samething. Afterwards my speech gone to hell and my social life and stigma everything grades. Oh my god today i realize how bad was that. Please help me if you can from this stammering thing. I think stammering is worst thing that can happen to any human because others think we are just awesome people csn do everything but in reality we got stuck in interviews...dont get jobs. Just fucked up life.