Waiting well is different from waiting passively.

Passive waiting is just delay with a better name. Waiting well has content: you are preparing, gathering information, building the capability the moment will require, keeping yourself in a position to move. The difference is not visible from outside, and it is nearly everything.

If you are currently waiting on something, ask what you are doing meanwhile. If the honest answer is nothing, choose one thing that will make you readier and do it. That single change converts a period of stalling into a period of building, and it makes the eventual arrival of the moment far less frightening.