You need to diversify your investments, choose wisely and invest only in projects that you have checked personally and believe in them.
Diversification can mean added risk as well. For example, earlier you had only BTC assets. But then you decided to diversify some of your assets in to ETH, NEO, ADA, EOS, NEM, LTC and XLM. Now you need to worry about 8 different currencies. That can be hard.