With 30-year T-bill under 3%, it is IMPOSSIBLE to find risk-free investment with 5% return. Period.
So, you have to take risks. The big question is what is your definition of risk.
Let's say we play a fair coin game, you bet on head and I bet on tail. We will play 100 times. Each time you win, you get $1.00. Each time I win, you get $0.80. Would you play such game ?
This example is to explain uncertainty versus risk. Many people think they are equal...If your definition is different, then you will have more choices for your idle money
Money and capital are different. It is no easy task to turn money into capital in a sensible way.