I want to retrieve all my iCloud photos back to my device

I’ve just removed my iCloud photos by turning off iCloud photos in the setting because I don’t want my photo library to include my mom’s photos since she used the same iCloud as I do. The problem is that now I also lose my own photos and I can’t retrieve them back even though I’ve turn the iCloud photos back on. Anyone has any ideas what I can do to get them back?