Slow and steady wins the race...
True! What I like to do is start a project like setting up a node or something - toss in a hundred dollars and let it go. Then work on another thing, and another, getting a lot of irons in the fire with minimal investment in each. I see how they work and put a bit more into the ones that are solid and show potential.
So many put all thought and money into one thing and then sit there watching it like a kid waiting for his next video game purchase to get done downloading. That kind of attention can drive you crazy.
As long as you have the keys or seed stored for each thing you start, you can always go back to it and see how it is doing or maybe add time or investment to it.
Only one in five things I try pay off at all. One in 25 rocket to the moon. You have to invest small amounts and expect some things to go south.