Well and that is also the reason why recovering from addiction is very difficult, but it does not mean that it is impossible to recover from addiction, I mean recovering from addiction can be easy and can be difficult, depending on whether they still have an excessive interest in winning or not, and from here we can also conclude that the difficulty of recovering from addiction depends on the interests and obsessions of gamblers with winning.
On the other hand, I can honestly assure you that it seems like your friend is a gambler who finds it difficult to accept defeat, is not responsible for the decisions he has made and also most likely he came to earn money, in the end one thing is that controlled gambling and recovering from addiction will only be possible if for example they no longer make winning a priority.
You have mentioned an important point. If we are very interested in winning, we can quickly become addicted to gambling. The first thing I need to know about gambling. Gambling is something from which there is a possibility of making a lot of money, as well as a possibility of losing a lot of money. Now if we always want to win, this is not possible at all.
To be a professional gambler, you must be mentally strong. Losing money in gambling is a normal occurrence. But you should not be upset about it. If we break down after losing money, it is very bad for our mental and physical health. Moreover, we must remember that in gambling, the chances of winning and losing are equal. I would even say that in gambling, you have to think that the chances of losing are more, and you should participate in gambling keeping this in mind.