It's gambling, you lose some and you win some. Luck will always be a factor in gambling. If luck is on your side on a particular moment then take advantage of it cause it will not last long. In gambling your loses is much higher than your winnings so don't think gambling as a main source of living.
Let me rephrase that! It is gambling, you win little and you lose big. That is the plain truth and even sometimes when you manage to peradventure win big, it all totally depends on your lucky stars because it is usually something hard to come by and that now depends on whether you end up blowing it all away by continuing with the gambling or you are able to put some sense in your head and walk away with your winnings. Human mind though, they always want more and that is what usually put them in trouble at the end. A lot of people already have that mindset of using gambling as their main source of living and that is pathetic.sometimes, you will lose all the money you have because you are too greedy to chase the money. But you cannot recover in gambling because you don't know when the luck is coming. But still, you can enjoy the game although you get to lose 
Be careful because you can become addicted to gambling and you will lose everything.
That is always the thing that most of the time end up happening and I agree with those who said, even if you manage to win a lot, you can still always end up blowing it all away. The possibility of losing everything is a lot bigger than winning something substantial. Gambling is a game of luck and as long as you are just doing things without knowing what the future is going to bring, you are subjected to just taking a side blindly and in that case, you can only be lucky to get something good and that luck is not something that is easy to come by naturally. Be careful because you can become addicted to gambling and you will lose everything.