I don’t know what I’m talking about

Help with R please

C – man at workshop said words about not ‘liking’ an exercise I led him through
T – I don’t really know what I’m talking about
F – anxiety
A – freeze inside, thought spin on how to explain it so he gets it but worry that I don’t get it and I’ve just copied the concept from Someone and now it’s being tested, I’m being discovered a fraud; Body gets tense; Ruminate all afternoon; Don’t focus on positive feedback or responses but feel like workshop went badly due to this one circumstance.
R – ???