Making a source of income from gambling usually doesn't end well if you don't have other sources of it or you are not a shiller / influencer of sorts.
I don’t really encourage people to even try and make gambling their source of income, because most of those people do end up being addicted to gambling. I will say most addicted gamblers get addicted just because they have the mindset of making money from gambling. Most of them won’t stop gambling even when they are supposed to stop, whenever they are winning, they will want to increase the amount that they have won, and when they are losing, they will want to win back their losses, which will lead to more losses, and most of them are being motivated by their fellow addicted gamblers not to give up.