The Uncomfortable Truth
This is the elephant at the table. A complete donkey can suck out on the river and take your stack.
The discussion: How do you separate a "bad beat" from a "bad play"? If you get it in with 80% equity and lose, you made the right play—but the money is gone. Can you genuinely be "good" at poker if you can't handle the swings, or is bankroll management actually the single most important "skill" in the game?