How to show the user multiple options and make sure they understand they don’t have to choose one

So I am currently developing this app that shows you ads and you swipe right if interested and left if not. When thinking about how to present the ads, instead of an 'infinite scroll' I thought it would make for a better user experience to show three, let they make decisions and then advance to the next set of ads.

I want to make sure the user understands that by giving they three options it doesn't mean that you can only choose one, but you can choose all three or none of them. What are some good ways of improving my scenes in this regard?

Here's how my app looks, with some example data

(The space at the bottom is intentional, I am thinking of what to add there)

Any kind of tip is appreciated, thanks!