Nice buck ! I’m editing to say it wasn’t all luck. You made a difficult shot count and unraveled a fairly long track with very little blood. You are to be congratulated for that !
That said, there’s always a degree of luck where hunting is concerned. Lots of what ifs. What if, when he rose from his bed, he had gone the opposite direction. Or ran into a likely girlfriend before he ever got to you. These and other what ifs are out of our control, but once he showed under your stand, you took control and made it happen. Ain’t it grand when a plan comes together ?