None of us are clairvoyant. You can only take the course of action you think is best in the moment and have the confidence to move forward whatever the outcome. I find regrets rather unnecessary, so I tend not to think in terms of 'worth' and simply observe at the results to adjust if needed.
I dislike useless actions. Is that the answer you wanted, tabibito-san?
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I dislike useless actions. Is that the answer you wanted, tabibito-san?