That sucks. Did you mention your stutter? I remember I lost marks for using umms and ahhs too much from the same teacher who let me present privately. I wish I mentioned that that was my way to help me get out the next sentence without stuttering. However, I felt guilty that she was already giving me a pass to do it privately when I know deep down she would have understood. Oh well, that lost mark didn’t determine where I am now, and i hope the same goes for you :)