Yeah, i know some of my friends that do gambling very professional with high profit everyday.
If you friends can get high profits every day, then they are not playing the dice or pure luck games. It might be black jack or poker. They win against other less professional gamblers.
Yes winning daily with luck is not possible for anybody. Only with skill based games we may manage to end a day with profits.
In my experience, gambling would be profitable in long run if we are able to develop and groom in the gambling required skills.
Not always too, although you play skill based games like poker sometimes you will lose too but still you can manage to stop it so you wont lose it too much. Long run gambling will not profitable, you will lose it no matter what, no matter how hard you try to change client seed or strategy if you keep on going and going you will end up losing all your money there. Thats why I can say if you are on profit just keep it and try it the next day