When do art become original ?

I’ve been questioning myself that for quite some time now. Why do most people believe that art is only good when it is ‘original’. Who decides which art is and what isn’t?

I am quite irritated on people telling me that my art isn’t original. What makes it better? Doing something new doesn’t mean it will turn out great. I can try do something original, something that no one else has done, and still it can turn out bad. Taking portraits with heavy make up or anything, well, there are quite a lot photos like that but why are they  so “average” when they all have different emotions or thoughts behind them?  Some are less good and some are better and it doesn’t really have anything to do with if they’re original or not.

Really, stop telling me and others what is original or not.
Nothing is original.
Everything is already done.
Deal with it.