Mind puzzle

Hello! Now in many forums you can read information from customers of bookmakers about how easily you can win bets and at the same time multiply your money at times. I do not agree with this. After all, to guess the outcome of an unfinished game is very difficult. This is a real mind puzzle. I tried to do this several times but never guessed it and only lost some amount of money. Already changed three bookmakers but I have no luck. maybe I don’t know where to bet. Where do you make them? What bookmaker's office? Advise me too.