Article continues below advertisementJennette McCurdy embraced her toxic past in order to move forward.During the Wednesday, January 21, episode of TODAY With Jenna & Sheinelle, the former child star, 33, revealed that penning a memoir about her troubled relationship with her mother, Debra, actually helped her find closure with demons from her past.Article continues below advertisementSource: TODAY With Jenna & Sheinelle/YouTubeJennette McCurdy guest-starred on 'TODAY With Jenna & Sheinelle.