Some Good News
So it seems the issue with my external harddrive is that it was built to be laid flat, but I've had it standing on its side because I lack the space for it to lay flat. For over a decade, this worked fine, but it would seem that the mechanisms inside the harddrive were working themselves harder due to the sideways orientation. Although I am now able to gain access to all of my work again, this issue has given me doubt that I could rely on this harddrive for much longer. I have since purchased a new external harddrive that does not require a power source and currently in the process of transferring over 700GB of data to the new harddrive. This is going to take quite a while to accomplish, so new videos will be delayed until further notice.