NEED URGENT HELP! iPod 5th gen not restoring or recovering!

About a week ago I tried to downgrade my iPod Touch 5th generation from either iOS 8.3 or 8.1.3 to iOS 8.1.1 as the update was causing me problems. In the middle of it working, my Wi-Fi dropped and the entire process stopped working. It also caused my iPod to enter recovery mode. Every time I have tried to restore it, update it, or update and restore it, none of it works. The progress bar will start to work but after a few minutes various error messages pop up. I have looked up everything I could online and nothing has worked. I have done various things from changing the hosts files on my Windows computer to updating iTunes and to whatever else but still nothing has worked for fixing the problem to my iPod. I even had friend take my iPod and try it on his computer, as one of the solutions I found was to use a different computer, but not even that has worked. I have been at this for a week and its very frustrating and it would just be simply amazing if someone could help me figure out what's wrong and how to fix it. It would be beyond greatly appreciated as my iPod is very important to me.