Live action kids TV show, possibly mini series set on Earth with young female protagonist in her early teens.
Something about her being part of an alien race... potentially... I have a huge pull towards the letter ‘Z’ being very prominent, either it was her alien name, or the name of their race.
She was either abandoned on Earth, or sent to Earth. I feel like the climax was her re-uniting with her alien family and discovering how important she was after all.
I feel like it could be Australian based, but maybe wrong.
I watched clips of Escape From Jupiter whilst trying to find this and got similar sort of vibes, but it's not that show.