Luck will always be on the side of those who work or make a living from gambling income, because they will try to master the game and will continue to play to earn income for their needs, and this happens to my close friends and even he has more income than me who has permanent work.
and as long as he enjoys and always earns income from gambling he will continue to play, and only God will change it because it has become his way and plan and there will be a good time to change it at the right time.
Are you serious about this?
Luck is invisible, you can't predict whether this person will get lucky or not because it's very random. Even you're full of hard work and put so much effort into your passion, if there's no luck then you will still strive more to get another luck. Winning and being successful in gambling is pure luck, no one can get a winning streak in the whole year unless the person is cheating or controlling the house.
You didn't consider the other factors your friend has so he/she keeps winning. It's not about luck, it's your idea and strategy also but luck has the huge factor of winning.
Luck is a natural phenomenon that could happen to all of us and yes, it is indeed random. It is not luck anymore if you master gambling or became a professional gambler, it is what we called "skill" that could bring us fortune in playing gambling, but winning and being successful is not pure luck, maybe sometimes, but it's not always, because every time we play and lose, we learn, and we use those every lessons we learned in gambling to win profits.
Not only gambling but all games that we play are controlled by two important factors i.e. luck and skills about that game. The history of sports is full of incidences when luck came into action and made people victorious and vice versa. There are also numerous cases where people won because of their skills. So in short, we shall master the game and then rely on luck.