When to gamble and when not to gamble is a serious question that is rarely looked at by those that gamble. There are definitely times that you should not gamble and there times that you are ready to gamble. Knowing the difference and the likely consequences makes this question one that you should answer for yourself.
Gambling when you are ill or upset at something going on in your personal life is not a good idea. These problems that are currently bothering you can interfere with the nuances that can make or break a gambling session. Your focus on the gambling may be diffused and thereby causing you to make mistakes in timing or hunches. You may even take out your problems on your gambling and subconsciously make yourself lose. It is hard to believe that a person would do this, but it happens every day in casinos.
The reason that a good mood helps when gambling is that the mood itself helps to overcome bad beats or short runs of bad luck. If the mood is negative, it is harder to overcome these moments of bad luck.
Illness is another factor that has immediate impact on whether to gamble or not. A person with a fleeting illness can wait for the illness to pass and then go play in the casinos. A person with a long-term illness is in a different category than a person with a short-term health issue. This person may have arrived at a place in their life where they are not letting their illness control their emotions. It may be that this person can gamble with impunity as they have reached a tranquil state and may be in a better place to take risk. This unusual situation belies the when to gamble and not to gamble question.
To further support the proposition that people who seem to be in a good frame of mind, seem to win, think about the people who have won lotteries or big slot pay offs. They state their surprise at winning, but they also seem in many instances to have resolved for themselves the problems of living. Suffice to say that those who gamble while in a good frame of mind have a better chance of winning than those who gamble while worrying about other problems. Smiles precede winning and frowns can precede losing. The road of smiles seems to be the one to take.