Do you need to be a writer to get writers block? If you're not a writer in the first place, is that just not being good at writing? What is this even for?

There is nothing like forced self reflection in the form of work performance reviews to make you question everything and wonder if you could just sell everything you own and live in a cabin and try and write a real book or screenplay or shopping list or Christmas cards or or or or Why have I written this in the second person?