The siren song of 'just one more scalp'
My biggest mistake early on in crypto, especially during volatile $BTC runs, was the constant urge to 'just one more scalp'. I'd have a decent win, feel good, then see the next candle flash and convince myself there was another easy 0.5% to be had. What inevitably happened was chasing small moves, getting chopped up by slippage and fees, and then usually giving back a significant chunk of my initial profit because I was no longer trading with a clear head, just pure greed.