Honestly, controlling our emotions is the toughest thing that a gambler can do. Why? That is because gambling is tempting. When we win, we want more. But when we lose, we chase them. That is why we more often lose than win. And there is no need to question why. Instead, ask ourselves why.
Yes, the game itself is a temptation, it is difficult to control emotions because we are humans and when emotions, impulses + desire for money are combined, crazy things can be done in the game and these crazy things have a direct impact on the money we put in to play, it is not good to play with a lot of money, I always advise spending little to win more, that is why slots are something that can be very pleasant to play and when you win more.
Yeah, it's not advisable to use large amount especially if you are unable to control your emotions, better to use spare money and enjoy the game, if luck permits then you may take out decent amount, but if you lose then it's not hard to move forward and forget about it, it's more on money management and how you handle the pressure when you already dealing with each sessions that you play, similar to you, slot can bring decent if the timing is right and you manage to quit while still at green.