Selena Gomez revealed her "biggest mistake" after she got her big break on the Disney Channel’s "Wizards of Waverly Place." The actress reunited with her co-stars David DeLuise, who played her dad, and Jennifer Stone, who played her best friend, on their podcast "Wizards of Waverly Pod." One of the questions that came up from DeLuise was, "What has been your biggest mistake so far? And you can’t say a boy’s name." Gomez responded, "Probably not staying in touch with you guys." She continued, "I think I slowly became… I felt ashamed of the decisions I made, and I didn’t want you guys to see me in the state I was in. Because A, you would have told me the truth which terrifies me, and I didn’t want to let you down." The "Only Murders in the Building" star was only 15-years-old when she starred on the series, which ran for four season on the Disney Channel.