With Screen Time, you can access real-time reports showing much much time you spend on your device.
If you can't find your family's shared apps and content - Apple
Use parental controls on your child's iPhone, iPad, and iPod touch
Get started with Screen Time on iPhone - Apple Support (CA)
Set time limits for apps and websites in Screen Time on Mac
If your Apple ID is greyed out in Settings - Apple Support (CA)
Addicted to Your iPhone or iPad? How to Set Limits With Apple's
Increase timeouts: iPhone and iPad - University of Victoria
Find your apps in App Library on iPad - Apple Support
Get to know Dark Mode - Apple Support (CA)
Official Apple Support
Use iPhone as a level - Apple Support (CA)
Use the Driving Focus on your iPhone to concentrate on the road