My most expensive lesson: the loss wasn’t in the bet, it was in my head

I didn’t lose because of bad luck. I lost because after going down, I decided I would win it back right away. That was the moment I realized: I’m not playing against the line, I’m playing against my own state of mind. After that I introduced one rule: I only place bets when I’m calm. If there’s anger, anxiety, or urgency zero bets. Share your most expensive lesson. No shame. In fact, those are the most useful things for beginners to hear.