YOU SAID:
Hello my name is stefan and i am 20 years old
INTO JAPANESE
こんにちは私の名前はstefanであり、私は20歳です
BACK INTO ENGLISH
Hi my name is stefan and i am 20 years old
INTO JAPANESE
こんにちは私の名前はstefanであり、私は20歳です
BACK INTO ENGLISH
Hi my name is stefan and i am 20 years old
That didn't even make that much sense in English.