I find this funny as frustrating.

I find this funny as frustrating. I am now in a middle of an online class and I have to read something and explain it. The funny thing is that before speaking, I whisper what I am reading or what I will say and it comes fluently, but at the moment I turn the mic on, I stutter all along the way and it frustrates me. The funny thing is also when I stop thinking, my teacher says I don't hear you because of your internet haha!