I know the value of the amount of money varies from person to person, but $120 is a really small loss for this market and a fair price for the lesson you've learned. That's why you can feel lucky. :) I used FTX for a while, but then I stopped using it due to a few system failures. Therefore, I did not experience any losses. However, if similar problems occur in Binance one day, many people will get hurt and I can be one of them. Therefore, everyone should definitely adopt the motto "Not your keys , Not your crypto". Thank you for your recommendation and reminder.