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Am I bored at work? While not feeling challenged could mean it's time for a new job, that sentiment also could be the launching point for more education. "You know when you're bored," says Khadijah Britton, who left her job in media relations at age 29 to earn dual degrees in law and public health. She now runs a nonprofit news agency covering the biotech industry. "When you find yourself checking Facebook too much. You don't want to come back from lunch at all ... [You're] bending over backwards to stay [mentally] present."
In the end, make a decision knowing you can't anticipate everything. "Sometimes your interests change," says Smith, who earned his law degree in his twenties and went back to school in his thirties for his MBA. "You need to make the best decisions you can at each juncture."