Broke

Well, the title speaks for itself. We broke up. I didn't know something could hurt this bad. It feels like someone is sitting on my chest and stabbing me. How do you even deal with this? Does it ever go away?
I use to be one of those girls that told everyone that it would be okay. And I believed in what I said wholeheartedly but now... I don't know. Everything stopped making sense in the blink of an eye.
What do I do?

I never thought in a million years that it would end this way. We had our whole life planned out and now I just don't know where to go from here.

Do I start over?

Do I just pretend that everything is okay?