Meh nope, it's far from expert lol. because I lose so much money in gambling and I never get profit on it, even when I get profit on gambling, in the end I will lose it all. Gambling expert also known for their bankroll management and I'm really sucks on it.
No one really is a gambling expert, there isn't any sort of term also. You can argue that yes they can manage their bankroll better than us but they still can't predict the outcome of a roll.
There can be a betting expert as that is more understandable but a gambling expert doesn't exist