Judgment before you sign

The schoolhouse skill is judgment: know what you are signing, which network you are on, who stands behind a promise, and when to wait. This school will not ask you to connect a wallet or buy a token inside a lesson.

You can finish every stop and still choose not to use crypto. Speed is how most tricks win.

Before any signature, run four checks in order. One: what exactly am I signing? Read the action, the amount, and the destination on the screen you trust most. Two: which network am I on? The same-looking token can live on several chains. Three: who stands behind this promise, and what happens if they vanish? Four: is anyone rushing me? If so, wait.

Then size it. Try any new action with a small amount you could lose, confirm it worked, and check that you can undo or exit before you go bigger. Most ledger actions cannot be reversed once they are final, so the checks come before the click, not after.

Real example: on the XRP Ledger, a payment is final once it appears in a validated ledger, usually within seconds. There is no button to call it back. If you send to the wrong address, getting it back depends on the receiver choosing to return it. That is why the four checks come first, every time. Sources: Finality of Results, Ledger Close Times.