Saving money is a good way to store your money, but investing is a bit risky, but high risky, high reward, you know, there is no big money until you invest. And there are many scams.
bitcoin industry is full of scammers there is no doubt. but it is not hard to determine scammers. you just need to be careful and do not invest your money somewhere if you looks anything shady here.. mostly investors ask for your money and promise to you that they will give you double in a time(bitcoin doublers) so stay away from them.. some altcoin projects are also ponzi scammers. don't invest without reading the road map.