It's easy to fall victim to the "stress of success." That's what happens when you earn promotions, gain responsibility and wield more authority. Self-doubt creeps in. You begin to feel more fear because more is expected of you-and the stakes are higher if you make mistakes.
Your inner voice can work against you. You may begin to feel like an impostor who does not deserve such success-and your anxiety can translate into an ongoing sense that others will discover that you're ill equipped in your role as supervisor.