I have to agree. I *wish* I had only been spending 8 hours a day. I've been doing this since 1995 and have never seen anything like this. I made over US$100K last year on the site that "died" starting on 25-26 July 2012. This month I'll be lucky to see US$2K. But, I'm 62 and can relatively easily retire having saved money, no debts and such. The money was nice, but it may simply be easiest to move on. The internet is being totally "Walmartized" and there's nothing us little folks can do about it.
I'd feel different if I had done black hat SEO or something, but never did any of that stuff. I will say it came as quite a shock to me. I'll give it a couple months, but after that I'll just be turning it off, so to speak, and getting on with life.