This question seems easy to answer.

Maybe some people can certain to say that they are student/worker/boss/son/daughter or something

all of people are share lots of position in same time

However, is this kind of answer can truely express yourself?

It supposes to tell others about yourself not your positions in your society

For me, it is hard to respond...

even I'm not sure that I know myself deeply and still searching and thinking

Who am I?