The slippery slope of 'just one more trade' with CFDs

I've been in and out of CFD markets for years, primarily FX and some indices. Early on, a mistake that cost me more than money was the insidious creep of overtrading, specifically the 'just one more trade' mentality after hitting my daily profit target. I'd start the day with a solid plan, execute it, hit my target, and then, feeling confident – maybe a little invincible – I'd spot what looked like another easy setup. It was never easy.

The problem wasn't necessarily bad analysis on the subsequent trades, but rather the psychological fatigue and the subtle shift in risk tolerance. My edge, which was present in my planned trades, evaporated when I was essentially gambling with 'house money' or trying to squeeze out extra profit. It inevitably led to giving back a good chunk, sometimes all, of my morning gains, and on a few occasions, even digging into my principal. The real cost wasn't just the monetary loss, but the mental exhaustion and the eroded discipline that made the next day's trading even harder. It took a while to recognize that a profit target isn't a suggestion; it's a hard stop on trading activity for the day, regardless of how good the next setup looks.