Idioms describing people's self-confidence

Idiom: full of confidence

Pinyin: mm mm m m m mǎn HuáI xìn xěnρn ρ n

Commentary: My heart is full of confidence.

Idiom: Have a plan.

Pinyin: xi not xi not ng y m u ch é ng zhú

Description: The original meaning of painting bamboo is to have an image of bamboo in your mind. After metaphor has made up his mind before doing things.