Gamblers don't realize they are addicted to gambling until it's worse which they've done unthinkable already like breaking the piggybank of his kid just so he could gamble again. But you as a gambler can also notice it to yourself before you get to the worse situation like selling valuables like jewelry so you could play again.
 
Is seeking a new strategy or thinking of betting while you are sleeping and maybe planning of betting again when you get your weekly pay signs of addiction? If not, what are little signs that unfold you are becoming a gambling addict?