As an employee, having your work scrutinised is the best thing that could happen. Embrace it, hell, encourage it.
Your either doing ace, in which case it’s good to know…. You now have a platform on which to stretch yourself further. Try new shit… Or toss it off, do less. Whatever.
Or your not, which is equally good to know.
You don’t like what your doing, change it. Your not achieving what’s needed, ask questions, listen, read and pick a path to improve. It may take many paths to get there.
Understand that we must learn from failure to simply succeed is rare and evidence of ‘lack of challenge’.
Now it’s not acceptable to simply take positives out of every situation, but to appreciate they exist, will keep you happy, balanced and aware that your not all bad.