I don't know why but I always get a feeling to gamble, after then losing my money, I quit for some time and then continue, but I know I will lose my btc 
Why is it so addictive?
Maybe the reason why your always driven to gamble is your eagerness to winner back your money that loss.Why is it so addictive?
Sometime we dont notice that.
But actually its not the game that we are enjoying but the regrets and the eagerness to comeback.
Or another reason is when you are winning you start to love it because of the easy money that come to you.