Daniel D'Addario Chief TV CriticThe fifth and final season of “Insecure” begins with Issa (played by series co-creator Issa Rae) looking back: Her character chats with a college-era version of herself in the mirror, with young Issa wondering what the future will hold.It’s a clever way to recap how far the character has come since the show began. Her conversation with herself takes place during a visit to her alma mater, Stanford, to speak on a panel of accomplished young alums.