YOU SAID:

i thought i invented a new letter when i was 8

INTO JAPANESE

私は8歳のときに新しい手紙を発明したと思いました

BACK INTO ENGLISH

I thought I invented a new letter when I was eight

INTO JAPANESE

私は8歳のときに新しい手紙を発明したと思いました

BACK INTO ENGLISH

I thought I invented a new letter when I was eight