Haha, just kidding -- it only felt like 12 days. It was more like 3 hours. I'm not sure whether the colors on my accustomed websites are more vivid now, or if it only seems that way because I was away from them for so long. Hm, but I'm away from them 8 hours a day when I sleep, and sometimes even longer. The colors may be better somehow.
With the help of a YouTube video, I learned how to turn off off Windows 10. After all of that aggravation learning how to call up the Power function on Windows 8 by swiping the cursor at the right-hand edge of the screen, it's now back to clicking again like earlier versions of Windows: click the Windows icon at the lower-left hand of the screen, and a box appears containing various things including a clickable Power button which when clicks gives options including a clickable Shut down button. Some of the older Windows users out there may remember when you turned the thing off by clicking instead of swiping.
The very top border of the screen is now grey. I don't like that because it reminds me of when earlier versions when from blue to grey when they were whatever you call it when you have to click before you can navigate on the screen. Or whatever you call it. I better go now, I obviously do not possess the jargon to properly write a post like this. In conclusion, so far Windows 10 has not been a nightmare (window 8 was a nightmare at first), but I've only been on it for 20 minutes.
I took the plunge because AARP says 10 is more secure than 8 (or 8.1 which is what I was actually using).