It sounds like you may be having trouble selling on gate.io. It's important to understand the basics of trading before attempting to sell. This includes understanding the different types of orders, how to set up a trading account, and how to use the trading platform. Additionally, it's important to understand the fees associated with trading and the market conditions that could affect your trades. Understanding these basics will help you to be more successful when selling on gate.io. Additionally, you may want to look into tools such as trading bots and technical indicators to help you make more informed decisions when trading. Finally, it's important to keep track of your trades and analyze your performance so you can make adjustments as needed.