Believe me, I dont either.
I even forget whole characters.
Like, When i was seven, I created an entire world, just like that, in which I was a Magical warrior princess, ect.
My sister, shortly after discovering the program that I am using for the game, wanted to make me a game of this world for my birthday. She hadnt finished in time, and forgot about it.
But then, recently, we got onto the topic of games, and somehow combined with my world.
She showed me the game, and i started playing right away.
I came across a suposedly main character and was like: "Who the Whatever is that?"
My sister told me, i had told her, at the age of somewhere between eight and eleven (i cant remember when this was) I had told her this Magical Princess I was had a special friend called that. I did not recognise the name in the slightest.