"I've been called many names like perfectionist, difficult and obsessive. I think it takes obsession, takes searching for the details for any artist to be good"

Barbra Streisand is suggesting that it takes a certain level of dedication and attention to detail to be a successful artist. She acknowledges that she has actually been labeled as a perfectionist, hard, and compulsive, however she thinks that these qualities are required for any artist to be good. She is suggesting that it takes a specific level of fixation to be successful in the arts. This could mean that an artist needs to be willing to put in the extra effort to make certain that their work is of the greatest quality. It might also mean that an artist requires to be ready to put in the time and effort to look for the details that will make their work stick out. Streisand is suggesting that it takes a certain level of dedication and obsession to be an effective artist.