This question ain't really necessary because most gamblers lose and also win, gambling is constructed in way it only favours betting platform, that's why many gamblers loss more than they win, most people think that they're winners maybe because they hit a big win, funny enough this win can cover most of there losses, but if they still continue gambling for non-stop there's a possibility that they will lose all the money they won before.
That is it, people may call their self winners just because they win one or two big win at some point, but if they really sit down and look at the full picture, they’re not actually winning..
Most gamblers think that way sometimes when they maybe hit one good win and it feels like they finally beat the system.. But the problem is continuing after that. Because the more someone keeps playing, the more the odds will slowly shift back to favour the platform, and before they know it the earlier profits is gone..