Isn't that just how slots work? In the short term, you might hit the jackpot, but in the long run, the casino will profit more than the player. That's why slot gambling needs to be regulated, because while it's fun, it can also be addictive and lead to significant losses if players lose control.

So, if it were me, I'd use the winnings to invest in Bitcoin or at least buy something, like a new smartphone or some clothes, so the winnings would be more useful than using them to gamble again.