Here are a list of Screen Sharing tips and tricks
Sharing Video: Remember to check boxes at the bottom of the Screen Share display to share your computer audio or present video during the screen share (See Screenshare settings - Computer Sound & Video)
Remote Control: You can have someone else advance your slides by giving someone else remote control of your computer. NB: You will not be able to use your mouse while someone else has remote control.
Dual Monitor Mode: In single monitor mode, you cannot see participants when you screen share. One option to allow you to see participants is to use Zoom's Dual Monitor mode. To enable dual monitors, you must check the Use Dual Monitors in the General section of Zoom settings menu. The second monitor will display whoever Zoom has identified as the speaking. When you start a screen share it will be displayed in the second monitor. Your primary monitor can be set to show the speaker or gallery (all participants)
Two Zoom Connections: If your internet bandwidth is sufficient, you can use two Zoom connections. This can cause audio feedback issues. See Audio echo when using 2 Zoom connections to present help article.
Speaker notes: It is wise to have a backup of your speaker notes in case you cannot get presenter mode to work properly on you computer. You could print speaker notes or have them loaded onto a tablet.