When asked "tell me about yourself?" I often sigh and wish I could answer the proposed question.
I thought the problem was that I simply did not know enough about myself to answer the question. But that would be too easy. It turns out that I might not exist at all.
This stems from my realization that there is no objectivity. Nothing is absolutely, objectively true with absolute certainty, and I'm not even too sure about that statement.
I exist only as a series of interpretations and through my own interpretations I grow up. This isn't inherently a negative thing because without these subconscious interpretations everybody would be unable to communicate. If I am in class and somebody raises their hand, the teacher asks them what the question is. We interpret that the student 'raised his hand' and wants to ask a question. It's obvious to us. But the same action in a kindergarten classroom might have resulted in "do you want to use the bathroom?"
This example and much more is detailed in How to Recognize a Poem When You See One and I strongly recommend reading that. It basically explains how everything is an interpretation, if you're being lazy.
What gets me worried is that I too am an interpretation. Every single person that has every interacted with me has a different viewpoint of who "I" am. This makes me exist as hundreds of interpretations based on what I do around different people. There is no single truth that explains "who Ansab is," and this drives me crazy.
I don't exist. My view of myself is simply another interpretation of myself and changes over time. I could be absolutely wrong about who I believe myself to be, and that is absolutely frightening.
The only thing I know is that I am thinking about who I am and am unable to reach conclusions. I don't know who I am and consequently don't know what I should be doing and what I am capable of. Can I exist despite that?