The design of every casino is that they have the house edge. Stepping in a casino means that you are already on the losing end, unless you are a good player and very lucky. Actually I just came back from playing into a traditional land based casino's and I only play for 2 hours and won a few and decided to go home with my bankroll almost double. If I have stayed longer, eventually I will lose everything.
This is the mistake that gamblers who always lose make. They always think they are good players and they think they are lucky. The only game that players CAN have an edge in is poker, even Black Jack if you somehow know how to count cards like a master photographer. In poker, if your players at your table are weak and easy to detect, you have the edge. Make no mistake, there are no lucky players in the long term. Unless they do like you, quit when ahead, they are destined to lose it all eventually.