Can everyone please share some of their worst failures?

I just failed an exam. That I feel quite bummed about. Apart from being average at best at my work...
Anyway...
Please share your worst failures. I want to feel less alone.

Sorry if this offends anyone. I'm just tired of people pretending that life is so perfect when it isn't. It can be perfect in certain aspects, but not all.

That being said, if you do have a perfect perfect life, please scroll past, I don't want horrible critical comments. I just want to feel less alone. That's all.

Thank you for understanding.