I agree its never too late for speech therapy! But judging by your age (I remember the struggle at that age) I know exactly what your saying. When the teacher would go up and down the rows or alphabetical order to read or say something out loud my anxiety would get me real bad! People can say slow down a million times (like they did to me) bit it won't make a lick of good hearing it! They are right, though but you have to know it for yourself. All the speech therapy I have had (I have had a fair bit) taught me to breathe deeply and slow down (its a lot more complicated than that obviously but the slow breathing is amazing for anxiety). I feel your pain though my friend! Good on you for posting it to get it off your chest (I wish they had internet when I was your age haha). If you ever wanna vent or talk about it pm me!!