A wave of market, a transaction, whether success or failure, is just a drop in the ocean among millions of transactions in your long career. Don't be proud of a success, and don't be upset by a failure.

A peaceful mind is always the strongest weapon of professional traders. When you become impatient, blind, fearful, and anxious because of changes in market conditions and assets, whether you make a profit or a loss, you have already lost. The wave of the market will infinitely amplify your emotions, make you exhausted, and give you a fatal blow.