Discouraged by my site's ranking

I've been working on an older emd site that had always ranked above the fold on page #1, but dropped down below the fold after the emd update. Whether or not the emd was the real reason, I don't know. But I've doubled the content since then, (all done by myself), added squidoo and other backlinks, but nothing helps move it up.

This morning when I saw that the site had dropped again and that three squidoo lens, yes, 3 in a row..sit above my site, it was doubly discouraging. I'm now #9, and get almost zero traffic. This is a low volume keyword, so I need to be near the top.

The site is juiceextractorreviews dot org. I guess it's my lack of social media involvement that's the problem. That's the only reason I can come up with, but maybe if other people look it over, I can get some other ideas.

The whole social media thing for me is hard. I'm a lady in her middle years, whose adult children have finally talked into having my own facebook page, but I have no interest in being "friends" with strangers (actually, I don't even want to be friends with all of my relatives!) I'm just saying this to point out that this social media stuff doesn't come easy to me.

Neither do I have a list. With doing Amazon reviews as my focus, I haven't really seen the point of the list. I've always had too little traffic, anyway. But when this site was above the fold, it made some sales, so that I thought as long as I kept adding reviews, the sales would increase accordingly. Then that emd update came, and it's been nothing since then, in spite of continuing to add content to the site.

Any advice as to what to do or how to repurpose this material (break it up into Squidoo lens???) would be appreciated.

Sorry this is so long, but I'm really frustrated.