Gambling is a big different from trading where we can share and take used of the same strategies but in gambling, it seems to be not applicable. Gambling is somewhat a big competition where everyone wants to win and so keeping our own strategies is a tool to make big days over the others..
This is applicable to poker, but it some other gambling games when there's no competition at all, for sure strategies won't work always. We have to admit gambling is a pure luck, strategies wont make things possible easily. You have to consider the house and try to be more objective and stop being greedy.