This post just triggered my PTSD. AM a 25(M).Done with my studies,now working I stutter less rn,but my school years were hell.The ridicule and laughing i got just because i could not say "present" was crazy.It reached a point where i just raised my hand to avoid the hustle of saying present.I fully understand you.Just stop caring man.Its who we are.We can do nothing about it.I have tries everything.I don't want to discourage you but all the breathing techniques never worked for me.Just take a pause and speak when you feel like.Above all,,stop caring!!!