I have already tried to play a dice game. Well, whatever strategies I use I end up losing. Indeed, gambling site was created just for fun and if you like to waste the money you can go there. That is not the answer to your financial problems.
Yes gambling should be for fun and not a way to replace your main bread and butter. Unpredictability is the key and majority loses. No way can you guarantee that you'll win today breaking you losing streak.
Losing what the gambling site provides is okay, it's their free faucets anyway. But depositing and losing them is another. You might wind up a real loser, losing even the bitcoins you've earned.