i personaly gamble a lot but i was never thought gambling as investment
for me is more like buying some wicked kind of fun ,alternative to going at a movie theatre etc
but if you want to see how you can gamble for long term success i can give you a bit of help
you must bet only when the odds to win are almost imposible like 1 chance out of 10,000 up to 1 chance out of multi-millions
those kind of bets you may find usually in national loteries and such ,thats not bad about how fair the game can be
then you need to decide a very very small bet you can put every day or week until you win just once !
if you are really lucky then odds are in your favor ,otherwise you will pay really cheap just to confirm your bad luck
have a nice day and good luck of course !