The Moneyist: ‘I’m afraid of making the wrong decision’: I’m obsessive-compulsive — and buy shares based on a strange formula. Is this normal? How do I stop?

Dear Quentin,

I have certain personal psychologies and behaviors that trip one me up when investing. How do I overcome those? Can you help me with mine? I’m not talking about general mistakes people make like the sunk-cost fallacy, but about personality traits and quirks. 

Here’s something I’ve found myself doing in my after-tax accounts usually:…