Fifteen years ago, April Little never imagined that making $300,000 a year wouldn’t feel like the financial freedom she always dreamed of. At 38, living in Rochester, New York, April once thought that a high salary would mean no more financial worries, a cozy home, and the perfect life. But now, she finds herself realizing that even with a high income, financial stress is still very real. “I don’t want to sound ungrateful,” April admits, “but when I reached what I thought was the top, I realize...