Gambling is the easiest way to gain profit than trading and investing but there has no assurance if you can have profit from it.
It may sounds easy for you however in reality, it is hard to get money in a gambling site unless it is EV+ for sure. In reality, we cant get any money at all because we are going to lose in the long run. The easiest way would be to play EV+ gambling but it is not easy to keep on finding one regularly