I often can't hold onto spot positions, and futures contracts are easy to get itchy and blow up the margin... Later, I gave myself a piece of common sense: before entering each trade, clearly write down "the maximum loss," if I can accept it, then go in; if I can't, then don't. Don't use hope as a stop-loss. Position size should be based on this loss limit, don't change your mind just because the K-line looks hot.

Recently, watching blockchain games that experience economic collapse feels quite similar. When inflation hits and studios run away, the coin price spirals downward, and players rely on "just hold on a little longer," but eventually, they can't endure. Trading is the same; frankly, survival depends on factoring in the worst-case scenario.

I treat complexity as an enemy: only keep two things—how much to lose, and where to admit mistakes. That's all for now.