Congratulations on escaping that type of work. I was up till last month and I decided one day, this is not for me. I was fortunate enough to land $0.05 to $0.9 per word but they were extremely strict. The writing was not all that hard, just they kept trying to give me 4+ 1,500 word articles due in 24 hours, sometimes I got two days to write them. That may not seem all that bad but I have a day job working overtime and also run a public relations company so time is extremely valuable.
Content Mills can drain you emotionally and even physically due to stress. Luckily you got out. Most don't.