i once had a heated arguement with a guy at uni that reckoned he could beat fruit machines, i told him what an idiot he was, something he didn"t take too kindly too. Highly dissallusioned!
I have had quite a few friends that have lost fortunes on them, used to say the flashing lights hypnotized them! i have heard all sorts of theories, when the lights flash faster its ready to pay out is apparently one of them! the bottom line is they are there to take your money!
most gambling addictions start from boredom, you go to the pub alone or with mates? when did you start playing? waiting for friends/ break in poker? i had a problem at uni being down the bookies too much, it starts off being harmless just letting the afternoon go by but then you start losing and start chasing before you know it you have lost a fortune!
you seem to have identified a problem early, which is a good sign. when you play poker etc either in pubs or casinos just take a magazine or a book to read during breaks, or go with friends...all of which allieviate the boredom, soon enough you won"t even think of playing them!