Luck will never be a fundamental element in poker, because if you depend on it you will always lose in the long run. Winning a tournament does not mean being profitable, what really matters is, using the most profitable moves within your knowledge, and always playing where you are better than the other players, with that, in the long run you will always have the financial return, that is, the two most important things are: your technical level over the other players of the limit you play, and the amount of games you play (with quality), because the more you play the greater your roi.