we know that most of the times we lost on gambling, but instead of stopping we keep on playing for the next day
after we lost, we got frustrated but we still back to play, is this called "gamble addiction"?
Yes, this is exactly a sign of a gambling addiction. But IMO if you know you will lose it's not as bad as if you think you can really win. If your addiction to gambling is limited to losing couple of dollars per week it's not that bad, right?