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general::
Phrase(s): Sing before breakfast, you’ll cry before night. [and] Sing before breakfast, you’ll cry before supper.
Prov. If you wake up feeling very happy, your mood will change before the end of the day. • Jill: I woke up in such a good mood today. I don’t even know why, but everything seems good. Jane: Sing before breakfast, you’ll cry before night. • Alan: Good morning, dear! Isn’t it a wonderful day? I feel great. Jane: Sing before breakfast, you’ll cry before supper.
McGrawhill's American Idioms And Phrasal Verbs