Just to add to this, the best way I can describe it, for an introvert, roleplaying/acting is like asking a “normal” person to jump off a cliff edge without looking over the side.
For context, I was booked on the course at least 2 months in advance and I had felt like I was carrying hulk Hogan on my chest ever since.
to answer malky, 100% the instructor – it was clear he was trained by the army – we were literally drilled for example on the recovery position, he started by slowly step by step going through the actions, then it was literally, arm, wrist, hand, leg, head turn Clear. That was at least 5 times in a row. It’s muscle memory now.