First and foremost, welcome to the Medium community; such a powerful way to introduce your writing to the platform!
I love how you not only define what it means and how it has affected you and your writing, but how not to let it define YOU.
I can only write from my experiences:
As a Black woman, my skills and credentials are often questioned in the workplace, even when I go above and beyond in my professional roles and deliver.
My "imposter syndrome" stems from experiencing both racism and misogyny (misogynoir).