Be careful most of the times when someone hits a decent amount and was just lucky they lose it all back. If I were ypu I wouldn't jump on any dice sites anytime soon just let it sit. Otherwise you might end up chasing. Or let it ride!! Congrats on the win.
That's true because he might be thinking it can happen again. So better for op to refrain from playing for a while because you might lose it again if you try to gamble with expectation of the same result.
Anyway congrats op because even the bet is placed by mistake with only 2% odds, still luck is with you that's why you win. It's really meant for you and good thing that you didn't had any problem withdrawing your winnings.