YOU SAID:
I'll tell you a tale someday but, you're not ready for what i have to tell you yet
INTO JAPANESE
私はいつかお話をお伝えしますが、あなたはまだあなたに何を伝えなければならないのですか?
BACK INTO ENGLISH
I will tell you a story someday, but what have you to tell you yet?
INTO JAPANESE
私はいつかあなたに話をしますが、何を教えてもらえますか?
You've done this before, haven't you.