Factory Resetting Phone w/ out computer Today I went to: 
Settings > General > Reset > Erase All Contents and Settings

I did this because I was told that would be the only way to get jailbreak off of my iPhone 5C. However, now my phone has been showing the white buffer icon for the past 2 and a half hours.

I didn't think it was suppose to take this long to restore my iPhone 5C back to its factory settings? Could it be because it's trying to delete the jailbreak? I really need to delete the jailbreak so I can update my IOS and other features on my iPhone. 

P.S: My brothers friend jail broke my iPhone 5C this previous winter.
To remove the jailbreak it is advised to restore the iPhone from the computer, but as you have already reset it mannually I would suggest to download the latest firmware from here, and then put the phone iPhone into DFU mode. Open iTunes and press the restore button holding the option + Restore if on a mac, or Shift + Restore if on PC and select the downloaded ipsw file. This should remove the jailbreak and put you to the latest iOS version for your iPhone.