YOU SAID:
I shall shoot myself in thy head
INTO JAPANESE
私はあなたの頭の中で自分自身を撃つ
BACK INTO ENGLISH
I shoot myself in your head
INTO JAPANESE
私はあなたの頭の中で自分自身を撃つ
BACK INTO ENGLISH
I shoot myself in your head
That didn't even make that much sense in English.