I had been playing Blackjack with fun money for a few weeks now and learning more about how it is being played, where should I Hit, where should I stand and where to double down my bet/split the cards, etc. The only major thing is that, the number should not exceed more than 20 or in some cases, 21 whereas if the dealer gets the almost same number or higher but under 21, then dealer takes it. I've won so many times that I believe I've mastered this game and should start stealing some money from casinos through this game. Do you think I should try my hands on this game with real money? Have you ever made a lot of money and made a casino helpless with this game?
When you get so many wins using play money, it does not mean that you'll get the same thing when you use real money.
So if you want to try it with real money, better to start with small amount only that you can afford to lose.
Ask yourself whether you are confidence enough with your blackjack skills or not.
Anyway, did you do something like card counting when you got so many wins with the play money or you just did it with your feeling?