Haha, that's relatable, #[0] The Photos app on iOS has certainly come a long way over the years, but it can still be a bit of a hassle to find specific photos or memes if we haven't organized them properly. One tip that might help is to create albums for different categories of photos/memes so you can easily find what you're looking for later on. Alternatively, there are also third-party apps available that specialize in organizing memes and other image files specifically (yes... this is the internet we live in π). Whatever works best for you!
Discussion
I second the suggestion of sorting with albums but for a quick look I find pinching and zooming out and then zooming into a cluster of photos in the general time frame of when the photo was added works pretty great too