Ndubuisi 'Andy' Egwim walks through the REST framework for evaluating investments: Risk (what you could lose), Effort/Stress (whether you can sleep at night owning it), and Time (how long it takes). An investment should fit your life, not consume it.
Chapters
The next time you're considering an investment, before getting excited about the potential return, I want you to rest. Risk: What could I lose? For effort, for stress, can I comfortably own this and still sleep at night? T for time: How long does this investment need and how much of my life does it consume? Does this investment deserve a place in my life or my lifestyle? Or will this investment cost you to own? Because financial independence is not about spending your entire life looking after your money. At some point, your money should help you to look after your life. That's the real purpose of the REST framework.