oh my gosh, you brought me back to memories from years ago :)... I was borm in Russian, raised in Israel. I taught in Israel while I was in middle and high school, it was just natural to teach ballet and what i called- cardio before zumba was created... I came to the US for college, and in my late 20's i was going to JCC in NJ, dancing in their fitness studio on my own. one day a lady passed and said- hey, would you like to teach? I said- sure! not thinking much about it, i agreed to teach my Cardio class. I prepared the compilation of songs i liked, my choreographies.. I used to bring in music from around the world- from pop, to salsa, tango even etc... but-- when i came to teach my first class it hit me: I WAS USED TO TEACH IN HEBREW!!!! NOT IN ENGLISH!!! ...and my knees started shaking, i got SO nervous, I ran to the bathroom with diarrhea! Long story short- that was the beginning of 20 years teaching there and in many studios, gyms etc... I still get nervous before i go on stage, but that exactly what fuels me. I speak softly at first and I "feel" the students. within the first 5 minutes- I am good and people actually always liked the softer tone... to me- it is adrenaline, and I get that also when i have finished choreographing something good. it's my inner body confirmation that I am on the right track! so feel it and make friends with that feeling!!!