YOU SAID:
i don’t understand how to work this thing
INTO JAPANESE
私はこのことをうまくやる方法がわからない
BACK INTO ENGLISH
I do not know how to do this well
INTO JAPANESE
私はこれをうまくやる方法がわからない
BACK INTO ENGLISH
I do not know how to do this well
You've done this before, haven't you.