Controlling oneself in gambling depends on understanding and discipline; it doesn't really depend on excitement because some people still feel excited about gambling, but they control themselves.
Some things you said is true, a gamblers has to first understand what gambling is, the approach to follow gambling and what to do and what not to do, gambling is a game that everyone has to be careful with, with how gambling addiction has been discussed, many persons wouldve be. learning from the discussion that been on here about this the so called mind deceiver which is addiction, excitement can lead to gambling addiction but that does not affect every gambler, there are some gamblers that have self.control, so no matter the amount the win, the don't get out of hand in their actions.