There are people playing that same game on the other end, and they have the tools to exploit market swings which you may not have. Those are the people who will benefit from the potential huge upswing, and that money came from somewhere, most likely from your investment.

Playing the stock market is a loosing game. It is gambling where all the rules and all the odds are stacked in favor of a handful of people who gamble for a living. (it is also systemic exploitation of the working classes; so if you are into worker solidarity [you should] you should not partake in said exploitation).