There is an opinion that the greatest dependence on gambling is formed at the moment of a big win. The player understands that money can be earned LIKE THIS. This is a fairly common opinion.
But I believe that the greatest dependence on gambling appears at the moment of loss, when the player admits in his head the idea that he could earn so much. He is disappointed, but wants to recoup. It is at this moment that the desire comes to play again and again in order to return to the previous state.
What do you think about it?
Seriously, I can say either a win or a loss can make a gambler lose control. Just as you said, winning in gambling can make a gambler believe that there is money in gambling and they can earn a living from gambling, so if they lose, the first win they had won't make them give up, they will have confidence in gambling to win if they don't stop gambling. And the same thing is applicable when you lose in gambling, you won't want to give up because, immediately after you stop gambling, all the money you have lost is gone. And most gamblers will want to win back all their losses, so they won't want to stop gambling.
Desperation is not a good element for gambling
When you are desperate to make money, you are setting traps for yourself. You will find it difficult to make proper analysis when gambling. There are things that, if you have taken your time, you will have gotten right, but because you are desperate to make money, you won't settle down. In everything you are doing, even if it's not gambling, if you are too desperate, you might end up getting everything wrong.