There's a fine line between determination and desperation.

This week, CNBC Make It is launching "Fix My Career," a makeover series in which the professionally stymied can present their most pressing career concerns to bestselling management author and CNBC contributor Suzy Welch, and get her no-nonsense take on what to do next.

In the first episode, Welch sits down with Henry Ayala, a 21-year-old college student. After he was put in touch with someone he hoped could help him land a job at entertainment company Roc Nation, Ayala called and emailed multiple times a day to follow up — and got no response. He wondered if his approach was too aggressive.

"What if they don't respond to you right away?" the Rutgers University student asked Welch. "How long do you wait before you try to follow up?"
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The Job Hunt Mistake That Can Kill Your Chances | CNBC Make It.