I currently use PS CC 2014 and ACR. Every now and then I THINKER with Lightroom. I do NOT have many photos, etc. in Lightroom. All the cataloging issues drive me crazy. I'm OK once in the Develop/editing section. It's the cataloging that is the issue. I would like to just delete everything in Lightroom and just start over. I just updated to Lightroom CC. Like I said above, I do NOT have anything in Lightroom that is worth saving. So, how do I dump what I have in LIGHTROOM and to start over? Please make this easy and simple. Thanks.
In the Lightroom menu go to File->New Catalog. Give the catalog a name. Lightroom will create a new empty catalog and you can start importing and organizing all over again.