Interesting, that you have learned of Glossophobia and you are very correct, we learn new things everyday.

fear of public speaking comes from the same place as most fears. We worry that we will fail. And fear of failure is what is blocking us the most.

I totally agree with you. We think of fail and it mess up our head, which makes more nervous of failing. It's funny. You fear of failing and that fear, creates further fear. That's why when you are confident, you speak freely and with less fear, thus, having a nice public speech or presentation.

Big thanks for coming around @crypto.piotr