Self-criticism (noun)

The act of evaluating one's own actions or characteristics in a critical or analytical manner.

Origin:

Combination of self and criticism, meaning the act of evaluating one's own actions or characteristics.

Examples:

1. He engaged in self-criticism to improve his performance.
2. She was always her own worst critic, engaging in constant self-criticism.
3. He used self-criticism as a tool to improve his own work.
4. The self-criticism she engaged in helped her to identify her weaknesses.
5. The self-criticism he engaged in helped him to identify areas for improvement.