Yes, it's like bad with strategy, but much worse without any strategy.
Without a organized gameplay you decrease considerably the profit chances in game. You can't start betting without thinking first how to increase the bet on loss, return to base on winning... If you start betting random you won't have even the chance to stop the game with some profit.
If you are lucky you will win, if you are not lucky you won't.
Martingale(like this one for example) is proven very bad strategy with only one outcome - lose. Whoever tells you different is lying.
No matter what kind of strategies, you will still going to lose if you will not stop when you are already having a winning streak. You will be eaten up by the house edge advantage of these casinos.
In gambling, we win sometimes and we lose some time. That is really the reality of it. But no matter what, we should always remember that the odd is always against us due to house edge advantage of the casino.