If there's a way to always win in gambling, I also doubt that someone will share it or sell it for just a small amount of money.
Agreed. Even if this was true, hypothetically, it doesn’t really make sense for someone who found the trick to have guaranteed winning to even share it anyone. This scam scheme is so ancient, and I hope no one would ever fall or even entertain the idea of believing this. Because if someone did, it is a case of ignorance and gullibility, since this has been talked about many times.
I don't think that there's a script that let gamblers win. I would do what you just stated that if it really can help me win im gambling then I don't need to sell it for that amount of money since I am able to win on gambling. Instead, I would give it for free. Scheme like this are very well known to many. Only ignorant people may fall for this nonsense about using script to win. No script like that exist as far as i'm concern so, I would say better to stay away from op just to be safe.