HELP!! Hard drive not responding, RAW file system??

Hey everyone, I could really use some help here. I'm having a nightmare trying to access my external hard drive; it's showing up as a RAW file system and won't let me in. I can't format it, I can't open it, I'm basically stuck at a dead end. I'm starting to panic because there are files on there I absolutely need to get back. I've already tried running EaseUS, then I gave Recuva a shot, and even tried Stellar Data Recovery v5, but none of them are finding anything at all. Does anyone have any idea what I should do next?

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like "Recuva"