YOU SAID:
I want to go bang my head against a wall.
INTO JAPANESE
私は壁に頭をぶつけたい。
BACK INTO ENGLISH
I want to hit my head against the wall.
INTO JAPANESE
壁に頭をぶつけたい。
BACK INTO ENGLISH
I want to hit my head against the wall.
That didn't even make that much sense in English.