Now I am not an expert in gambling but this day was a really eye opener for me, you can never win in gambling. Imagine when you can't win in lotto , soccer betting or whatever you call it, you don't have a chance in slots.
To be fair, gambling is too broad a term nowadays. We cannot generalize gambling as if all gambling games can be categorized as one. I mean, I cannot classify dice as the same as a game of poker. They are obviously two different bananas. In the same manner that you cannot classify gambling on a lotto and gambling on a soccer game as one.
The huge difference is that the other one is purely based on luck while the other could be won based on skills, or perhaps based on a brilliant analysis. Gambling on a slot machine is definitely a world different from gambling on a game between Roma and Brondby on Italian Serie A.
Perhaps you are just having an unlucky day, mate. There are always better days ahead.