In sports bet we need both skills and luck to be profitable because sports is not like other casino games that totally rely on luck to win, sports involve players and teams that have perticular styles of play. It doesn't make much sense to only rely on luck when it comes to sports, you need to analyze the past performances of the teams and players that you want to bet in, it will increase your chances of winning. When you analyze games before betting on them it will give you the satisfaction that you have done your own part and you can leave the rest to luck.
I am not a person who gambles for God's sake, but i play poker and follow poker as a hobby.
The characteristics that make a strong poker player are essentially three if we want, patience, resistance and luck.
You can have all the strategies but if you don't get the right cards, there's little you can do!
Also, it usually takes many hours to play, so if you are not patient and get tired easily, this is not the game for you.