IPhone Help! How do I undo Restore Backup from iTunes?

I was trying to recover deleted pictures on my iPhone 5 ( that I had deleted today) and had clicked "Restore Backup" while on iTunes. It sent me back to October of last year! Now my phone is stuck in October, of last year, and I don't know how to undo the "Restore Backup"… Please, help.

Take to an apple store