Well after 6 weeks of inveszting on yolodice, i'm calling it quits.
Out of all 3 investments ($250 in BTC, 2 LTC and 10k doge), i'm only in positive with LTC, about 0.02 LTC.
Rest is negative. So yeah... not saying it's scam or anything, just there's better investment options
Certainly, you can do what best you are thinking at this point of time if you consider that more fall you would not be able to sustain it then better to exit your position and book your loses. Generally, since it’s a gambling site this would happen where someday a big whale would make it big and your investment would turn into negative and it may take time form there to recover. Also, on other hand one can book some profits in between whenever they make certain percentage and exit the position rather than waiting for long.