I recommend a good book to brothers: "The Logic of the World." Reading it will give you a new perspective on viewing the world.

It doesn't teach you how to buy coins or pick stocks, but it helps you understand: our lives, work, and consumption are all results of political and capital struggles.
What capital is best at is creating crises and then profiting from them again.
We usually think that crises are accidents or mistakes, but the truth is that crises are the normal state of the capital system.