I have too many pics for my phone, but have been told by Apple Store that putting them in iCloud and deleting them on the phone will delete them in the cloud too.. options?
I download mine to my iMac. Very easy to do with iTunes. Just create a folder on your computer be it a Mac or PC. Then when your phone is connected and iTunes is open, go to Photos option and direct you phone to sync with the folder you created. Move those images to a sub-folder. Then you can delete images on your phone and you still have the images saved on your computer. Thanks.
I upload my photos and videos to cloud apps like Box and Dropbox. Then delete from the camera roll. I've been managing my storage space that way a long time.
Mine are all stored in DropBox and Google Photos. Once they are uploaded there you can delete them from your phone. Alternatively, you can connect your device to your computer and save your photos there.