i dont know?!

I don't know where to post this and which area of the forum would be correct, so i give this one a try.
You know that feeling of everything in life, the situations, the people, everything is just a cliche?
I don't know how to describe it, maybe someone is experiencing the same and can give me an explanation about that feeling.

I'm not quite sure what is meant by that, but it does remind me of some ways that derealization is described.