Yup, it is certain that all forms of action that lead to excessive aspects are mostly done because of the urge to win, or I mean the urge to get a big win like that produced by other gamblers and of course the obsession with winning can very easily lead a gambler to a cycle of addiction. You said something right that the more we think about winning, the more uncontrolled we will be in every decision we make, most likely most of our decisions will tend to be aggressive or impulsive, therefore because of this we are always advised to only make gambling a place of entertainment, none other than because when money is not our priority in gambling, it is unlikely for us to take various impulsive actions, meaning that the possibility of our loss will not be too great.
Everything that pertains about excessive dealing up wit something is always been bad and this is something that put up on someones mind specially on gambling that this one really involves money. Be careful on dealing up with gambling because it could really that destroy your life if you wont be be that careful. Addiction is on the time or moment that you cant resist on playing despite of those huge loses.
People will really be just that starting on having those regrets on the time that they are experiencing hard situations. It not really that bad to gamble if you do make yourself that responsible.
They are really just that tending to forget even the most basic stuff or common sense on dealing up with something that needing up to expense some fund for you to enjoy.
Its not bad to enjoy but spending too much then this is where things get messy.
Of course basically anything that is done excessively will always be bad, and that applies to anything we want or are doing, well especially if we talk about gambling which is basically an activity that has a risky side behind the chance of winning, when a gambler has reached that situation then it is certain that he has reached or is trapped in a situation of addiction.
In most cases, it is true that usually people will only be able to realize their mistakes when regret dominates their minds, basically yes of course gambling is not bad, we cannot blame the activity because after all there is absolutely no coercion from the casino to us to continue gambling or to gamble blindly, and also from the start it is clear that gambling is about winning and losing, so if the question is who should be blamed for the slump experienced by a gambler then he himself should be blamed.