Anyone who borrows money to gamble is definitely on a suicide attempt because the person is definitely aware of the risk involved.
I have once borrowed money to gamble and I had two thoughts in mind when I did that. First off, I prayed to win so that I can pay off my debts and also start to have a better life because at that point I already felt like giving up.
Secondly, I decided it would be an end to my existence if I lost that money because I couldn't stand having issues with a close friend that borrowed me that money and it will be a great stain to my personality. I think God was only merciful on me and I won, paid off the debts and gradually having a better life I ever wanted.
You happened to be very lucky during that particular game, and I'm happy for you, but, as you said it yourself, borrowing money for gambling is something similar to a suicide attempt. People shouldn't do that even if they were diagnosed with cancer because it's not only their own life at stake, but also of those who are close to them.
From your story it looks like the outcome of such behavior can be a good one, and some might think "Why not take a risk?" But the truth is that in most cases when you win, it doesn't end there. Knowing that they can win, people usually try to do the same again, and lose even more than they could during the first time. I really hope that this won't happen to you. Stay strong.