In a society that often equates career success with personal value, it can be hard to separate your self-worth from your job. To do this, intentionally cultivate a rich, multi-faceted identity outside of work. What are your values? What are your hobbies and passions? Who are you as a friend, partner, or family member? The more you invest in these other areas of your life, the less your job will define you.
Remember that you are inherently worthy as a human being, regardless of your professional achievements. Your job is what you do, not who you are.