Maybe you don't really need special training to gamble, when you gamble you only need to control your emotions because it won't be good to gamble in an emotional state, your opponent will easily defeat us. Play calmly and with the ability of our money to have, do not play outside the limits of the money we have it will be very disturbing concentration. Of course we all know that gambling in any form will not be separated from luck.
Yes, you don't need special trainings or it is better if you will just avoid gambling forever. Gambling will always be connected to luck, and we don't know whether we are lucky or just having a good day. Instead of using your money into gambling, why not just use it in investing, maybe on crypto currencies, on Bitcoin. There is a lot of great investments and you don't need to waste your money on gambling.