After more than a week of not being able to log on to Flickr, it finally worked! Then I found out that Google sign in will no longer be supported soon, so I had to create a third email for myself, just so I'm able to sign in in the future. After some difficulty, I finally got that working. I gave up Flickr for Lent, as well, so I haven't been able to use it for about two months. :(
Other good news: OT.com does not appear to be going down anymore! Hurray!