People carry rules about money they never consciously adopted: money is scarce and must be protected, money is proof of worth, money should not be discussed, wealth comes from a single decisive move. These operate under the analysis rather than alongside it.
The trading expression is direct. Scarcity beliefs produce cut winners and undersizing. Worth beliefs make a drawdown feel like personal failure. Secrecy beliefs prevent the disclosure that would break a shame-spiral. The decisive-move belief funds the oversized bet.
The useful exercise is to write down what you were taught about money and money losses, then look for those sentences in your journal entries. They are usually there verbatim.
Related: identity-and-trading, shame-spiral, scared-money, financial-stress