Make your own rules.

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You don't play by your own set of rules.

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To save your own life, create your own list of "tricks" and of rules to impose on yourself.

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Learn from the greats by reading their books, and applying their sell rules to your own investing strategy.

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Set some ground rules before you start, at least in your own mind, because this is where your heart comes out from behind the computer screen.

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"You can referee badly, but what you cannot do is create your own type of justice and, worse, invent a personal application of the rules, " Cruyff said.

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