The siren song of 'just one more trade' on $TSLA earnings

I had a decent green day going, nothing spectacular, but solid. Then the $TSLA earnings report hit after hours. I'd been watching the chart pre-market, saw the early pop, and thought, 'There's still juice in this.' So, against my better judgment and established risk rules, I jumped in with a speculative swing, much larger than I'd usually allocate for an after-hours play. I ended up giving back about half my daily gains when it quickly reversed and the volume thinned out. The lesson, again, is that 'just one more trade' when you're already up is often the fastest way to turn a good day into a mediocre one, especially on something as volatile as TSLA post-earnings.