Hi Lisa,
So, you’re supposed to share your read-only link as well (tips on how to do that here: How to Enable a Webflow Share Link), but I might be able to answer your question anyway with a screenshot from my site.
I think what you want to do is, on the homepage, go into the collection list settings and click to “limit” the collection list. You can then sort or filter to control which projects show in that limited list. I added a field to my collection called order so the projects are numbered 1, 2, 3, 4 and they always show in the order I decided.
Does that help?