When I was about seven or eight, my friend convinced me that she was Hermione Granger and I was Ginny Weasley. She told me I was actually twelve and my missing brothers did exist, they just hid when I looked at them ... she even wrote me a Hogwarts letter.
I still half-believed this at the age of eleven when I wrote a letter to Professor McGonagall asking if I could go to Hogwarts ...
A childhood belief about i'm different

others believed things like this
- i used to believe i would get my letter to hogwarts when i turned 11— katie Phillips
- I waited for the mail to come on my 11th birthday so that I could get my letter to Hogwarts... It never came.— Charlie
- the summer that I turned 11 I waited out side on the step all summer for my hogwarts letter... ;D — Ginny weasley... not really
- I used to believe that I would go to Hogwarts. Anon
- My friend Chris told me that when he was young, he thought that "elemeno" was the letter between k and p.— Jocelyn666
- Chopin wrote Chopsticks.Anon