Not only does it reflect the general personality, the results and attitude of gambling reflects more than what a person keeps inside them, some people are really good in their nervous and emotional systems when at least their vibration is only at low frequency all their life but once they approach gambling, what had always remained infinitely stable began to fluctuate and cause a confusing rhythm. Sometimes many people are also scared and do not realize their strange personality in gambling, it is almost two opposite and ugly versions that a person does not want to see.
Regardless, gambling is a true reflection of one's character and discipline in fighting and controlling one's emotions. It does really tells one's ability to withstand the pressure that comes with uncertainty. Fighting one's emotions during gambling is not as easy as mentioned by many. It goes beyond just controlling your emotions, it is also ingrained in one's ability to understand their inner self and identify their emotional weaknesses. From such knowledge, one's able to build some sort of immunity that kinda fight that urge. It exacerbates why one's gambling pattern and reactions exacerbate one's true personality.