Without wanting to appear "middlebrow dismissive", you can't really reach the correlation conclusion, since we have no data on the daily activities of unsuccessful people.
On the other hand, successful people will have daily activities pretty much by definition, since you very probably will have to be an expert on some thing if you are successful at it (successful amateurs are very rare), and virtually the only way to be an expert at something is to do it every day.
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Without wanting to appear "middlebrow dismissive", you can't really reach the correlation conclusion, since we have no data on the daily activities of unsuccessful people.
On the other hand, successful people will have daily activities pretty much by definition, since you very probably will have to be an expert on some thing if you are successful at it (successful amateurs are very rare), and virtually the only way to be an expert at something is to do it every day.