Things you wish you knew when you sold for the first time

Hi TRE community,

About to sell my first property and wondering what you wish you knew before selling for the first time. I'm more interested in what happens after the property is listed on MLS and what to expect starting that point. I am working with an agent but want to do my own due diligence and learn from your experiences, including things you wish your agent had prepared you for or never shared with you till the last minute. Thanks !