A thesaurus would give you synonyms and antonyms. The answer is thesaurus.
It is an example of a idiom.
hope it helps!
Answer:
I think it means that you can think you are good but always want to be perfect
Explanation:
therefore you striving to be perfect would burn you out
His confidence is transformed by the crowd’s response.
Scotty is described as being a "quavering husk...just moments before." This shows his lack of confidence and anxiety about being on stage. Once the crowd's enthusiasm and excitement for his performance reached him, it is described as "lifting him off his stool...unleashing something strong, charismatic, and fierce." This change in his demeanor shows his confidence grow in response the crowd.