The siren call of 'just one more trade' and the resulting bleed

I had a day last month where everything clicked in the morning. Executed a couple of clean scalps on $NVDA and $TSLA, took profits, felt good. Instead of walking away, I let the high convince me I was in some kind of flow state. Started looking for another entry, forced one, got chopped out. Then came the 'I can make it back' mentality. Each subsequent trade was smaller, more erratic, and bled a little more, turning a great morning into a net negative day. The lesson, again, was realizing when you've hit your internal limit for good decision-making, regardless of how the P&L looks. It's often better to preserve capital and mental energy for the next day than to fight a losing battle against yourself.