[Evia]

Oh man I'm sorry OP! I can relate to that unsettling experience! It sounds rough! Especially with your bosses present. On a somewhat related note, I used to really enjoy being a lead vocalist for post-hardcore/metal bands,and id suffer from extreme anxiety leading up to every performance. It honestly got to the point where the benefit and thrill of playing music was outweighed by the intensity of the anxiety that i just stopped all together.

It was something I battled with for years and I tried numerous things to try and make it a comfortable experience but to no avail. One thing that did help a little bit was right before I would go on stage id lock myself in a room completely alone and I would close my eyes and try to steady my breathing as i visualized in my head how I wanted the performance to go. It sounds kind of cheesy but it did bring a sense of calming focus and determination.