There isn't one specific term for talking badly about yourself, but it can be described as self-criticism, negative self-talk, or self-deprecation.
These terms all refer to the act of putting yourself down, focusing on your flaws and shortcomings, and minimizing your achievements.
Here are some examples:
- Self-criticism: "I'm so stupid, I can't even do this simple task."
- Negative self-talk: "I'm not good enough. I'll never succeed."
- Self-deprecation: "I'm such a klutz, I always trip over my own feet."
While some people might use self-deprecation as a form of humor, it can often be a sign of low self-esteem and can have a negative impact on your mental health and well-being.