Things to consider
Set a reminder for your scheduled shoot
Charge your phone to at least 50% before the shoot
Connect your phone to a strong wifi
Eat and Sleep before your shoot to give you that camera-ready energy
Day of the shoot
Dress up and get yourself camera-ready
Find a well-lit room, preferably with a large window
Find a partner to hold your phone or find a spot to set it up, like a window sill
Close all your apps then open the Shutter App
Your photograper will connect with you, once prompted, click "Begin Session"
Grant Shutter App the necessary permissions
Your photographer will be guiding you through the entire virtual photoshoot
Once done, leave the app open for a few minutes to allow the photos to upload