Mariah Carey watches herself perform 'Vision of Love' on GMA in 1990...

I'd like to know what was going through Mariah's mind while watching herself perform 'Vision of Love' on Good Morning America in 1990. 
The interviewer brings up GMA's 40th anniversary and shows Mariah the oldschool performance. She looked a little emotional watching that old clip. She knows she can't sing like that anymore and wishes she still sounded like that. She shouldn't be too hard on herself because no one is going to sound like their 19-year-old self at 45-years-old. 

MC visits GMA yesterday to promote her new movie and book: