Man... I feel you. High school was a place of embarrassing moments and anxiety for me. I too felt that everybody was talking behind my back, but in reality nobody was. I didn't receive any comment about my embarrassing moments. I don't know which is better, the radio silence or comments from your classmates. Anyway, I told myself that I couldn't continue this cycle of despair. I had to take action and improve my stutter. After 2 years of hard work I know have a "worry-free" stutter that is almost unnoticeable to the casual listener. I would love to help you! DM me if you are interested!