I also noticed this. When I went to okay dice some months ago which was my first time, I won and that made me remember when I first tried roulette. I play roulette a lot because it is the game I prefer the most but recently I noticed that I do not win like before. Sometimes I feel like the casino is manipulating but it has happened to me on more than 3 casinos and I think it is just normal. That as long as you are gambling against the house, you are more likely to lose.