In my opinion, losing money is equally painful in both futures trading and slots. For example, if you deposit money in a casino and then lose it all on slots, you're unlikely to feel any enjoyment.
It's not healthy to look at casinos as money-making machines for players. They are making money, but for themselves, not for you. It's an entertainment industry that profits and makes a living from your losses with one important distinction from other sources of entertainment: you have a chance to win something every time you come to play. That's what's appealing about them. But the wins are far from guaranteed, especially with games with a high house edge like slots.
This expectations is common to be seen from newbies. They usually made a mistake for thinking that there's easy money on gambling. But realize that its not easy as what they think when gamble and experience the worst.
As I see it, we should consider it as leisure money, spending money, which you hope for a positive experience but which does not have to turn out that way. You can go to the cinema or the theatre, and the money you pay for the ticket is spent, you write it off. The experience with the film or the performance can be very good, or bad.
In the same way you can deposit money in Betfury, but if you don't do it with the mentality of writing it off, you've screwed up. In the same way, you can have a very good experience, and win a good jackpot, or a bad one, and lose your deposit.
Although it is true that you learn this after a while, the first few times you bet you are just looking for luck without really understanding what it is all about and many people, especially newbies, think they can get rich betting.