Youre absolutely right, when you try to prevent your stutter you're constantly thinking about stuttering, I find that when I am thinking about stuttering I tend to stutter more than usual Considering you mighy have most of your teachers emails due to covid, if you find it hard to approach them irl definitely shoot them an email, that's what I did, I just asked if possible could I not read out loud in class and it really took a weight off my shoulders.