Greetings jeannie911,
Welcome to the Apple Support Communities!
From your question, it sounds like you are trying to enable iCloud Photo Library on your iPhone. If this is the case, please follow the instructions in the attached article below.
iCloud Photo Library FAQ - Apple Support
If you want to turn on iCloud Photo Library on all of your devices, follow these steps:
- In iOS 8.3 or later, go to Settings > iCloud > Photos, then turn on iCloud Photo Library.
- In OS X 10.10.3 or later, go to System Preferences > iCloud > Options next to Photos, then select iCloud Photo Library.
Cheers