I've always loved the cup analogy because it makes so much sense. Take whatever helps, for however long it helps but expect that you'll be "on the floor again" and that's normal. Since I was already down there, I spent a lot of time on my knees...raging at the man upstairs...that's normal too.
It will get better Nikki and stay better for the most part but it's going to take a long time. I'm glad your reading everything you can get your hands on and I'm glad you're talking to us about what you are feeling.
If they had known what it was going to do to us....well, there it is again.
They didn't know...their depression overcame them. ~sigh