Really need your guys help!

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Ok, I all of a sudden started getting the error code 80031600. This has happened before but it always started working again within a half hour or so. This time though it was about a day I couldn't get signed in. So I went on the web and followed the instruction to be ablt to get signed back in with my account.

Now I was able to get signed in again however i used my e-mail and password but it gave me access to a different account I had made a while back. This wouldn't be a problem but now I have lost all of my friends list and my trophies . I checked my e-mail to see if I still had my info in there from when I signed up and I do have an e-mail for my original username that I had but it gives me no password.

Does anyone kind of understand what I'm saying here, lol , sorry I know it's confusing. Basically I need to get back into my original account, how can I do that. Like all of my music and videos are still there so I know my account should still be there. Any help right now would be greatly appreciated because I'm totally lost, thanks.