Fighting against anything is a form or resistance… why “fight” perfectionism? What about perfectionism is highly valuable? What parts of that make up your gifts?
What parts are not (those you can let go of by bearing witness to how they do not help you and thus instead of resisting, you notice and let them fall away).
You can see “perfectionism” as the far end (shadow side) of someone who is detail oriented, want to take a project to completion, and wants to do really good work.