I take responsibility of my losses since it's my decision to gamble my money. This is the reason why it's a must to know what you're getting into before playing. Because losing is inevitable in gambling, so we should know the consequences to become prepared if worse case happened.

Playing in moderation, self control and acceptance (in facing losses) are crucial. If you can bear losing your money and will just blame the casino or others for your losses, then better to not gamble at all.