That is why we must gamble with the mindset that regardless of what the outcome is we shouldn't get overwhelmed with the reality to the point that we start gambling is a particular direction, let say if and when we are gambling and becomes lucky to win consistently let that not get into our head to the point that we start to think we can be lucky all the time.
We have to accept our luck as well as we accept our loses also, this is one mindset that will help a gambler the most.
If you have been gambling for long, I mean for a veteran gambler no amount of winning streaks could get into his head because he has seen and had many experiences with the act. He just accepts the winning streaks as they come in, knowing well that after a win comes some losses too. Gamblers that are mostly carried away are the newbie gamblers who haven't undergone through some of these experiences, as a result they get easily carried away.