Idina Menzel has "struggled" with the unpredictable nature of show business.
The 53-year-old actress was nominated for a Tony Award when she played Maureen in 'Rent' in the late 1990s and then landed a record deal that she was quickly dropped from when her album failed to sell, so she had to learn how to deal with the "fleeting" moments of success by the time she was cast in the original Broadway production of 'Wicked' in 2003.