College girl wants to be an actress but learns she doesn’t have the killer instinct. She earns $ by tutoring aspiring opera singer in Italian. She finds a p/t job tediously copying zoology charts by hand. She’s in a play; a rival actress puts sneezing powder in her handkerchief.
Finally found this myself! This book is “So Much Can Happen” by Robin Gottlieb. I got a copy and was able to confirm the details.