Your best work is the one only you can do.
Yes, there are job descriptions on spec, and yes, we have been trained to saw off our edges to fit into them. And yes, we might even be congratulated when we get "selected' in such a generic role.
But soon our individuality will feel suffocated, the same as when we try to fit a square peg in a round hole.
Your individuality and idiosyncrasy are a gift to the world and the work that you do matters. Because, for some, if you don't do this work, no one else would.