Phone case can be translated as:
Handytasche
Handyhülle
Except in the case of historic personalities, it is not normal practice to translate names. Peterson remains unchanged in German.
Born in German is geboren.
Schwester is sister in German.
Lichtdurchlässig is translucent in German.
"She" translate as "sie", always with a lower case 's'. With a capital 'S' the meaning would be change to the formal term of "you".
"Federmappe" is the most commonly used term, but I have also heard it called a "Stiftetui" and a "Federtasche".Some people translate "Pencil case" as "Das Etui" on its own.This is very unspecific, this can refer to any small case or wallet that is used for storing small objects in.
Chre is not a German word
The German word for "heart" is "Herz".
You say "Was ist das?" In German.
My heritage is mein Erbe in German.
schön
"Willkommen"