Gambling is not wrong but for some people it is wrong, they are fast addicted and due to this they keep playing over and over and get stuck.
I think gambling is fun but you do not have to play too much.
Those that are susceptible to get addicted to gamble should know better, they lack knowledge of themselves, for example, I know that I cannot fight at all, so do you think that I go around looking for a fight on every dark alley? Of course not, so know yourself and if after doing an analysis of who you are you come out with the answer that gambling is not for you. Then never gamble is that simple.
Yes, if you know yourself, you will be able to control your emotions. The root cause of psychologically problems is unable to realize one's capability, same thing could be applied to gambling problems too. If you are able to analyse yourself completely, you can find gambling is suitable or not so that you can avoid gambling problems.
But I do see a successful person with his career, but struggling with gambling. Your degree will not help you to win in gambling. But self accessing, must be a great way of finding gambling easy to avoid its problems. Still, gambling requires some extraordinary talent to manage it profitably.