I'm going to have to call BS on this one. There is no way you can reach such a high level of play without competitive match experience. And there you are accomplishing what Federer would only dream of, and you are worried about needing luck? Congrats on being the most talented tennis player on the face of the earth.
+1 to the BS. 5.0 is an elite level of tennis - one doesn't reach that without extensive match experience, period.