Casino will gets the biggest advantage than the gamblers because the casino have the business and serves the gamblers with many gambling games.
The casino is having a house edge, that matters. In the long run the house edge's effect becomes more prominent and the total loss of the players is more than the total loss of the casino, eventually making the casino profit more and thus have a positive net output. Hence the casino business is productive in the long run and it is why people like Trump have ownerships in casinos.
Be a part of the casino if you want long term profits, being a player will only bring losses if you dont know when you need to stop gambling.
That's makes us difficult to win from the casino and if we wins, our winning will not too big compare to what the casino gets. We can only playing gambling as usual and not thinks much about the wins because as we knows that winning the gambling games is not easy and needs more money. Even if we used more money, that will not guarantee us can wins much money and maybe we only wins small wins.
Our lose will be bigger than our wins so we must understand that we don't have to hopes too high from gambling. It's better we try to make money from the other sources that can gives us money than gambling. We don't have to follows other people to used more money to playing gambling because we don't have the same allocations money to gambling. So we must allocate some money that we can afford.