There are many similar quotes that exist in pop culture and though I can't identify this one specifically, I'm still bumping the topic.
Old questions like this that don't get answered are still going to be useful to people now. If you know of a similar quote (like the many that I found) or perhaps a classical piece this may have been found in, please add your feedback.
Someday, everything is going to go right for you, and it will be so wonderful you won't even know what to do. — Hannelore Ellicott-Chatham, Questionable Content
