Open the Photos app
Tap Albums
Scroll down and tap Recently Deleted
Authenticate with Face ID, Touch ID, or passcode
Tap Select
Tap the photos or videos you want to delete
Tap Delete
Tap Delete Photo or Delete Video to confirm
To delete all items, tap Select
Tap Delete All
Confirm by tapping Delete All
To remove items permanently, make sure they are deleted from Recently Deleted
If you want to free up space immediately, empty the Recently Deleted album completely