卑下も自慢のうち
Meanings
1
too much humility is pride; taking pride in one's humility is a form of bragging
Proverb warning that excessive self-deprecation can be a subtle way of seeking praise or showing off one's modesty.
He's always putting himself down, but that's a case of 'too much humility is pride.'
Saying 'I'm still not good enough' might actually be a way of bragging. As they say, humility can be a form of pride.