Professional Efficacy Needs Feedback and Resources
Feeling less effective can emerge even when you are working hard. Before concluding that you have lost your ability, look at unclear expectations, interrupted work, unavailable resources, and the kind of feedback you receive. Confidence is easier to evaluate against a concrete task.
Ask a supervisor to clarify what successful completion looks like and which resources are available. Separate a skill that needs development from a workload that needs adjustment. Both can be addressed without reducing the person to a performance label.
Research connection
WHO describes burnout through exhaustion, job-related distance or cynicism, and reduced professional efficacy; it is an occupational phenomenon. [1]
Put it into practice
Select one task you have been doubting. Define the expected outcome, identify a barrier, and ask for specific feedback. Review progress using observable work rather than a general judgment about your worth.
Reference
Practice suggestions are editorial applications; the cited source has not tested this exact exercise.