Well I'm around 5 bitcoins in total in the negative right now for bitcoin dice although i have to say I am very fortunate as I lost the majority of these 5 bitcoins when the price of bitcoin was still relatively low.

Gambling is a real problem with bitcoin because you are able to send large amounts of coins anonymously across the globe no matter where the casino/bookmaker you are playing at is located. And it becomes pretty damn tempting to do it over and over, trust me i've seen people lose thousands of dollars on one single bet or in one single session. You don't want to end of like these compulsive gamblers. Don't gamble what you can't afford to lose.