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As you say you have been in big profit after making just a few rolls, but what about after thousands ones? I doubt anyone sane will gamble more than 10% of his bank roll at each bet if he's trying to reach such wager amount. It means 1660 bets (332k/0.2k) have been made at least with an average stake of $200. On 1660 bets you are more likely to lose the house edge than to make winnings because it's not a small number.
And if you are able to make winnings on large amount of bets, you are very likely to be banned or restricted.This is actually a very interesting question for me. Is it true that you can be banned from an online casino like Stake for the only reason that you are winning too much.
I know it used to be a thing for some land based casinos in the past, but I don't think reputable online casinos of the level of Stake are practicing it these days. In fact, I'm pretty sure that all top online casinos don't do that.