For how much time do you usually let your money invested in a casino before finish or renew it?
Mostly a month, depends on their profit percentage, but mostly, yes, a month. I'm not always investing on a gambling sites ever since when I got scammed for the very first time, so, I am staying always on the safe side, always checking the gambling site where I have invested my money if its still there working, because some of them are running off with all the bitcoin that all their investors invested to them.
That is why, it is better if you are going to check it everyday, and if you know that you have already make enough profit, better withdraw it all just to be safe.