Can I update my phone with no Apple ID?

Recently someone hacked my Apple ID. I'm not sure how it happened, but I can't check emails, use my notes, and I can't do anything ICloud related like share pictures unless through iMessage. Other than that I'm not sure if I can update to iOS 9. I went to Apple and they only suggested a new phone. I can't get a new phone because my current, iPhone 5s has important documents I can not lose. They also don't know how to restore my Apple ID without losing the documents. Does anyone know how to fix these problems?
tatjanadeslandesAsked:
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Kyle SantosSoftware Test Analyst ICommented:
Can I update my phone with no Apple ID?
No.  Apple devices require an Apple ID.

Can you recover your Apple ID?  

Here is a helpful article on how to find, change, create or delete your Apple ID and change your Apple ID password.
http://www.macworld.co.uk/news/apple/apple-id-how-setup-find-change-create-delete-apple-id-guide-3463233/

Let me know if you need anything else.

o/

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Jackie Man IT ManagerCommented:
You can reset the password of your Apple ID via iforgot.apple.com  unless your email account associated with your Apple ID has also been compromised.
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