YOU SAID:

I don't really understand what to do

INTO JAPANESE

どうしたらいいのかよくわかりません

BACK INTO ENGLISH

I'm not sure what to do

INTO JAPANESE

どうしたらいいかわからない

BACK INTO ENGLISH

I don't know what to do

INTO JAPANESE

私どうしたらいいのか

BACK INTO ENGLISH

I don't know what to do