There is a saying that says: the one who does not risk never wins ..! one in business you have to make decisions that are usually not easy, usually the person tends to see the tendency to invest their money .. as you say investing in more than 5 cryptocurrency is a risk but it can be an option, in this life there is to try everything in the business ..
read the last of Bill Gates, who says that if there was a way to end the bitcoin. He would finish it.