I read a study a little time ago I cannot recall it exactly at the moment. But the content was following: if you invested 1 dollar into every cryptocurrency ever made, including the ones that were scam from the beginning, then today you would still end up in profit, because the ones that failed or were a scam, are still balanced out with the benefit and profit successful coins have produced. So the lesson is to make smart choices and make sure you invest your money as wisely as possible. So there are risks, but you can minimize them when investigating the project you are about to invest in - there are some very good ones.