When we big win, the mind gets triggered to make big money all of the sudden or loss it immediately.
Yeah, that's how human nature is.
That is one of the reasons why gambling/casino still exist today since the ancient times.
Its industry is getting bigger and bigger, new casino are popping out like every month, like it is really profitable to do a casino business because of these human gambling behaviour.
Once we win a large amount of money, we will think that this is our lucky moment, and if we play one more time, it will definitely give us another win. But unfortunately, that's not what happened because we have the potential to get lost after that big win.
And if asked how many wins we've ever gotten, maybe the answer will be different, but I'm sure some often get big wins in gambling. I have never had a big win.