Please consider keeping careful track of your gambling-related expenses and winnings. Maybe carry a small notebook, or enter them into your phone. After some time, you can graph the results pretty easily, and this will give you a clear and honest picture of what's happening. When you work from memory alone, it's easy selectively remember your successes, as these are the most exciting results. So don't attempt to record past results, start fresh from today.
At the end of each month, you can decide whether the fun you get from gambling (and hell, it can be fun) is worth what it is costing you.
This is a pretty good advice IMO. Gambling has destroyed more than one man's life. Winning a few times often creates the illusion of "I can do it" and then you start spending more waiting for this next "streak of luck" - it has to come, since it already worked once, right? No. Luck is luck (except of you believe in fate, karma or gods watching over your shoulder). Consider a game of head or tails: The chance for either one is always 50 percent. Always. Yet our mind is fooled to believe that having, say, three times head in row somehow makes tails more probable. Even if you had a hundred times head in row howver improbable this is, the chance for tails on the next throw is still 50 percent.
But our mind doesn't work this way. And this is where gambling addition starts. Winning tells you that "you can do it", that you are one lucky bastard and should continue. Losing means, you have to try harder, since it's just a matter of time until you win big time. That's what our brain would like to think.
I don't want to spoil your fun here, but please be careful.