Not a mistake

you must forgive yourself for not knowing the answer and must reward yourself for continuing to move forward trying to "find it"

life is an exploration, a puzzle sometimes and we are sort of like children on a scavenger hunt; no one "knows all"

and if you make mistakes or do things that may not turn out as you'd hoped, try to learn from it and try (more importantly) not to beat yourself up for "making a mistake"
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because the mistake may be a divine blessing in disguise, slow in revealing its (ultimate) gift