Why to keep money under the pillow if you can spend them? Gambling is not spending it's just losing so I would never recommend to anyone lose their money that way, but spending on goods and food is good. If you have more money you can even travel the world. There are many wonderful opportunities which open for you when you realize that there are no safe methods to gamble.
There is no safe methods in gambling but you can prevent your self if you have high IQ you can think and realize that you can be just lose your money think in advance and maybe you can prevent your self to gamble.