Sentence examples for am a failure from inspiring English sources

The phrase "am a failure" is not correct in standard written English as it lacks a subject.
You can use it in a context where you are expressing a personal feeling of inadequacy, but it should be preceded by a subject like "I".
Example: "After failing to meet my goals, I feel like I am a failure."
Alternatives: "I have failed" or "I consider myself a failure."