Lightroom Backups

I'm trying to craft a Hazel rule to control my Lightroom backups. I've searched the forum, but can't find the answer. Here is the folder structure:
/Users/Bill/Desktop/Screen Shot 2020-07-25 at 11.56.29 AM.png
There is a Backup Folder. In this folders are Sub Folders, each names by date and time, i.e.2020-06-15 1821. In that folder is a single file, containing the Lightroom Catalog backup.Lightroom Catalog-2.lrcat.
i.e. Backups. (Folder)
2020-06-15 1821 (Sub-folder)
Lightroom Catalog-2.lrcat.zip (File)
This list can grow quite long and large, as there is a backup each day, and nothing is ever deleted. Before I recently cleared it out, there were something like 30 folders, taking up about 10 GB of space. I want to get rid of all the folders except the most recent two.
I understand how to get Hazel to dive into subfolders, but I am hung up on two points.
1. How do I delete the folder, after deleting the file, and more importantly
2. How do I keep the most recent two folders untouched.
I'm running Hazel 4.4.5 on a 2017 iMac running Mac OS 10.15.6
I'd be grateful for any advice or directions.
/Users/Bill/Desktop/Screen Shot 2020-07-25 at 11.56.29 AM.png
There is a Backup Folder. In this folders are Sub Folders, each names by date and time, i.e.2020-06-15 1821. In that folder is a single file, containing the Lightroom Catalog backup.Lightroom Catalog-2.lrcat.
i.e. Backups. (Folder)
2020-06-15 1821 (Sub-folder)
Lightroom Catalog-2.lrcat.zip (File)
This list can grow quite long and large, as there is a backup each day, and nothing is ever deleted. Before I recently cleared it out, there were something like 30 folders, taking up about 10 GB of space. I want to get rid of all the folders except the most recent two.
I understand how to get Hazel to dive into subfolders, but I am hung up on two points.
1. How do I delete the folder, after deleting the file, and more importantly
2. How do I keep the most recent two folders untouched.
I'm running Hazel 4.4.5 on a 2017 iMac running Mac OS 10.15.6
I'd be grateful for any advice or directions.