As long as real money is poured into the market, who dares to say they've never overextended or carried a position alone? It's human nature, and you can't escape it.

The key is not whether you can completely avoid mistakes—that's unrealistic. The real difference is what to do after making a mistake. Someone opens a long ETH position at 3700 and gets caught, holding on stubbornly and losing more and more; someone else enters at the same level, notices something is wrong, and immediately cuts the position, then looks for the next opportunity. The former might get liquidated, while the latter, although it hurts, is still alive.

The dividing line between excellent traders and ordinary players is this: knowing when to cut losses in time, and not jumping into the same trap a second time. The market won't give you a turnaround just because you're stubborn; it will only make losses snowball and grow bigger.