A far as FB, I think all of my real friends and family have blocked me since I started adding Etsy stuff. Now, I don't know how to make all the Etsy stuff go away! I've added an Etsy page, but still some Etsy stuff gets on my main page.
I agree that learning FB has taken way too much time.
As for Twitter, well, I joined, I tweet, I retweet, but I have no idea if that's making any difference.
I also started a blog but don't have the time or the interest to blog about my life. So, that probably won't get me much either.
All in all, though, I'm not doing badly selling without FB and Twitter...