Marilyn threw herself into her acting, dancing and singing classes that were provided by the studio every day of the week.
She knew that if she were to succeed, she'd have to be more than just good, she had to be the best.
One of Marilyn's teachers, Phoebe Brand, told Donald Wolfe that Marilyn was
"a self-conscious girl who never spoke up in class... She was extremely retiring. What I failed to see in her acting was wit, her sense of humor. It was there all the time this lovely comedic style, but I was blind to it. Frankly, I never would have predicted she would be a success."