Yes that is true. You may not be acknowledged earlier. You yourself may not believe it earlier.
But ten years alone will not make you that stuff.
Painstaking training , very hard work , endurance up to the core , learning , writing , listening and convincing are further requisites.
And ultimately you will have to create opportunities for yourself.
Creating that , grabbing that , retaining that and delivering that for ten years---now you can be called that stuff.