How do I regain my well organized catalog?

I am responsible for losing my LRC catalog. I somehow added the dates of all my picture folders

and the file names in a separate list in the catalog. In the process of deleting them from the catalog since the lists were redundant, I proceeded to lose the organized catalog. The dates and folder names are still present but I have no way to send the photos anywhere. No longer are there any choices on the top of the screen such as Photo with which I could send the images to be edited in PS. 

First, how do I slowly reenter the file names by year and date which is how they were organized before this mess. Second, how do I send the photos in the remaining lists up to PS? I am assuming that there is no chance to find my catalog anywhere.

Thanks,  Photodoc16