It’s impossible for any of us to be the one and only best photographer in the world.
Lee Friedlander, Helen Levitt, Harry Callahan, Ansel Adams, Henri Cartier Bresson, Duane Michaels, Robert Frank, Amy Arbus; these are some of the best photographers in the world, but none of them are THE best.
What they are the best at is being an idiosyncratic exception to the norm. They are the best at being themselves, not the best in the world at using a camera.
While being technically proficient in your craft is important, chasing after being the technical best only helps you avoid the truly hard work of creating real art, real connection and finding your own way as a photographer.