CLEAN : Lavillenie seeking new heights in pole vau

The video covers various topics, starting with an introduction and context setting. It then moves into a discussion on bookkeeping, followed by personal reflections and insights. The video concludes with a look at professional challenges and considerations.

What does the speaker mean by 'I don't tell my COC'?

What challenges does the speaker refer to when they say 'good challenge, don't you?'