Former President Donald Trump’s niece, psychologist Mary Trump, shredded her uncle in a new email blast analyzing exactly why she believes the criminal hush money trial which began this week is such a problem for him — not just legally, but emotionally. “No doubt Donald feels as though he’s being singled out for extraordinary punishment, but that’s because he has so rarely been in a situation in which he has no control over either the narrative or the proceedings,” she wrote. “Because this is a criminal trial, he will have virtually no say about anything that happens inside that courtroom and,…