A childhood belief about i'm different

I used to believe, at some point, that I was a special emissary from a planet in the next solar system over from our own, and that the planet shared the same name as me, and the entire planet was populated with people who looked and talked exactly like I did. There was a planet for my sister and a planet for a friend of mine, as well, with those same properties as my planet had.

I remember, in the minutes before class, being at school and sneaking a quick word to my homeworld. My communication device was a viewscreen that I had no memory of setting up but had cleverly disguised as a bulletin board. And only I could see what the screen really showed, which was an absolutely barren landscape crowded with thousands of me's, all clustering to get in view and to wish me luck in my mission, whatever it might have been.