Same thing with Monika. I got her to step in as a speech evaluator and she did a fine job. Next time will certainly be easier still. This is following the example of Mei Yee. When she first came to our club, she told me that she never did speech evaluations before. I got her to try one and now, she's done a few already and is improving each time.
Don't worry about making mistakes at our club since that is how we all learn. And you are in a supportive environment where you are allowed to make mistakes.