Unawareness and having unenough information about the terms of the game will surely lead to disappointments when losing. It will come to a point that the player would blame and accuse the game of being rigged without being mindful of the rules. When losing, it doesn't mean that a site is cheating or not providing fair play. Let's just accept the fact that we can't win over the house so the possibility of losing will always exist.
The OP and others may feel cheated by the game provider or something, but without solid evidence this accusation is nothing more than a form of disappointment when he loses so much. The OP may need to consider evidence when he complains about fairness, but when he starts to doubt that it's unfair then the best option for him is to go and play on a game that provably fair. One more thing, he must be a wise gambler and must have good control on gambling.