I'm having trouble recovering my iPhone 4?

Long story short: I wanted an app, needed to update phone, tried to update software, but somehow got into a mess. I wanted to update my iPhone 4's software, but when I tried to do so a picture of a USB cable pointing to iTunes popped up. I assumed it meant to do that so I hooked up my phone to iTunes. A message told me to recover my phone in order to update the software. I tried to do so but Error 1934 came up. I almost got a heart attack because my phone was no longer able to be used. I researched and googled ways to solve it. One of the methods was using TinyUmbrella. I followed the steps from: http://arjunicf.hubpages.com/hub/How-to-solve-iTunes-error-3194-in-10-simple-steps. I did as was told. When I tried to restore again, Error 1600 popped up. I researched ways to fix that error. I'm honestly very tired and have no idea what I'm doing. All I wanted was an app and now I'm having a mental breakdown. I have broken things before and have always felt terrible having to tell my parents. I'm trying to solve this on my own but it seems impossible. I want to give up but I can't. I honestly don't have a clue as to what I'm doing and why. Someone please help me. For more information: my iPhone 4 was bought off the Internet from some dude (it was a birthday gift from my aunt), it's jailbroken, my software was probably around iOS 5 or so (I didn't see the need to update till I wanted the app). I'm so scared and really need someone's help.

Give your iphone 4 to me and take my iphone6…