Imposter syndrome is likely the result of multiple factors, including personality traits and family background. One theory is that imposter syndrome is rooted in families that value achievement above all else. Common thoughts and feelings include:
fearful they will be discovered to be a fraud
believing compliments and praise are because the audience is being nice not because it was earned
feeling unworthy of success
feeling like it was luck not talent that got them where they are feeling anxious or depressed
feeling undertrained
Ways to Prevent It:
Practice setting realistic goals.
Recognize your expertise.
Define what success means to you without including the approval of others.
Stay away from toxic competitions.
Don't rely exclusively on external validation.
Set limits and boundaries to avoid overworking.
Practice responding to failure in a healthy way.
Praise yourself for successes and efforts.
Remember nobody is perfect.
Determine your support system and lean on them when needed.