Hi, @chris3!
Thank you for your kind words

So, these groups are on the index page and this is what the user sees when he goes to the site. In this case, I think, it would be not right to hide or delete these groups. They kind of promote your site and make it more informative. Currently, these groups are populated from the DB (listings). You may rename them and leave, for instance, the listings that you consider is best and which should be shown on the index page. It is up to you 
But just in case, there is a bubble functionality helping hide or make visible the elements- visile only when.

I do understand that it is difficult to customize the template at first. In this case, I may advise a couple of useful link and tutorials that could help to sharpen your skills:
1.Introduction to Bubble: Lessons | Bubble
2.Bubble Manuals: https://manual.bubble.io
3.Bubble for Beginners: Bubble for Beginners Course | Zeroqode Lab
4.Marketplace Web App like Airbnb Course: Marketplace Web App like Airbnb Course | Zeroqode Lab
Wish all the best and wish to create a desirable project easier and faster!
Best, Julia.