Simplify the following text for a Grade 11 native English-speaking person.
Original: Improvisation became an important influence on her initial understanding of what it means to be an actress , as she noted in an interview for The Believer in November 2003 :
Simplified: Improvisation became an important part of her understanding of what it means to be an actress , as she noted in an interview for The Believer in November 2003 :