If you gamble everyday then yes you will lose in the long run. There's no denying in that. The house will always be the more profitable party in gambling. This is why it's best to gamble just for entertainment and when you can afford it.
And that is also why casino is so profitable. Real life casino is setting up one after another one in different parts of the world and they can earn plenty of money to be taxed heavily too.
Take the advantage of the profitability of the casinos and instead of playing you can invest for better profit, that if you aim for money as that is your only way to earn money. You cannot earn money if you are just a typical gambler in the long run as you can easily run out of bankroll and that would make you desperate.