A VPN is the most effective way to bypass geo-blocking. It works by rerouting your internet traffic through a secure third-party server located in a different country, giving you an IP address corresponding to the server's location.
Each game you play at a casino has a statistical probability against you winning, which makes gambling an inadequate option for those looking to boost their income. While the house advantage varies for each game, it ultimately helps ensure that the casino won't lose money over time.