Poker is also card game, and Preference, and Bridge.
I think you mean not a "card game" rather "a game which highly depend on probability". This will be right speech.
About you: Did you use some interesting strategy, this is great result, from 5 to 50

Exactly what I want to say. I don't have strategy on winning but I'm using martingale strategy on betting actually i'm expecting to lose that day I just follow my guts and I think it's just a lucky day for me.