How do I stop items/pages from duplicating each other in a collection?

I am very new to Webflow and was wondering how I can edit and change the content of different items/pages without them becoming duplicates. It appears that when I make a new edit on an item all of the other items end up copying those new edits, is there a way to stop this from happening? Thank you.

A collection template is used by each collection item. You bind collection fields to elements in the template to render unique values. Check out the university for documentation.