Mature people adapt to their environment rather than expecting it to conform to them.

You're a fisherman heading out to sea. You watch the weather not to demand perfection, but to adjust your strategy—so that whether it's sunny, cloudy, rainy, or windy, you still get a good catch, or at least the best possible yield relative to those conditions. You don't set sail and insist on fair-weather conditions; if there's even a slight deviation, you throw in the towel.

That distinction is what separates a consistently profitable, mature investor from a retail trader.

Too often, tragedy strikes not because the cycle has changed, but because you refuse to accept that it has—and therefore refuse to adapt.