YOU SAID:
Hello i am your my best friend
INTO JAPANESE
こんにちは私は、私の親友
BACK INTO ENGLISH
Hi I am my best friend
INTO JAPANESE
こんにちは、私は私の親友
BACK INTO ENGLISH
Hi, I'm my best friend
INTO JAPANESE
こんにちは、私は私の親友
BACK INTO ENGLISH
Hi, I'm my best friend
That didn't even make that much sense in English.