0.17 BTC is quite a big amount of current market price. Sorry for your losses. I don't think all this money is from the site faucet because 0.17 BTC to collect takes a lot of time. If you want to play this game with your money then you should have chosen some other dice site which got less house edge. I'm not telling you will win with less house edge but at least got a better chance.

I accidentally did the same thing you did a couple of years back. I left my computer on all night running on a betting script and ended up loosing half of my coins. The worse thing you can do is not watch what you're doing because sooner or later the site will change its algorithms or it will notice that you're using some kind of Bot on their network, which is absolutely horrible. Be sure to always stay on top of what you're doing and anticipate any changes that may or may not arise from your activities, take nothing for granted, and always bet safely or that which you can afford to lose.