Gambling is a game of luck, and no one can prove its not since no one can be in profit for a long time,unless luck is involved.
Hence not can be explain even in scientific way. Sure we have some so called strategy but this don't guarantee us to win and sometimes I'll just go with this
feeling and
gut and roll it. Perhaps if we really want profit then don't be greedy, just have some winnings then call it a day.
Just let your luck deal with it.