Honestly you just know how the game works but no can master it and beat anyone. It's a card game and so no skill can make your card better or no skill can make you win it's a pure luck game and also a decision game wherein you will choose if you are going to stand up, hit, split or double. Yes I've made a lot with blackjack before I made my 5 LTC to become 50 LTC but ended up around 35-40 LTC.
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
