Straight to the point; Don't treat gambling like a source of income and must understand that there are certain potential influence such as chasing your lost, chasing profits and lost of self controls which can really turn down every of your good labours you have acquired at the course of gambling.
It's crucial letting them know that addiction and irresponsible gambling habits are real to gambling and when you've become a victim it's usually hard to step out of it. So take note and avoid those perceptives that would hold you handicap.