Trying to start over with my refreshed library

Roon Core Machine

Apple Mac Mini
Plenty of power and updated

Networking Gear & Setup Details

After installing Roon I realized my library need to be cleaned up and now have the files groomed with all the right meta data. Unfortunately, my roon still shows all the previous meta data etc. I want simply re set roon to the refreshed library by starting over completely. Can someone walk me through it.

Connected Audio Devices

Number of Tracks in Library

Description of Issue