The son of a controversial Christian diet guru is speaking out about his experience and says he has a lot of regrets, News Channel 5 reported. “I look back on my life and go: ‘What were we doing? What was I thinking?'” Michael Shamblin told News Channel 5 about his life with his mother Gwen Shamblin, who many say was a cult leader. “Gwen Shamblin Lara was a narcissist. She always had the answer. She knew more than anybody in the room wherever she went,” Michael said, adding that he “quit calling her ‘mother’ probably around 2010” because two were “so at odds.” Also read:Fani Willis’ father exp…