I hit that wall too. Just let yourself be what you need to be now. You will come back. You will, I promise. Lillamy nailed it.
I also felt (and still feel) mad at myself sometimes. That's a really normal reaction. It takes time, but it gets better. My getting mad at myself is a stream now, instead of an all-consuming tidal wave. I can step over the stream. Just give it time. The best advice I got was if you wake up mad, let yourself be mad. If you wake up sad, let yourself be sad. If you wake up with no emotions, let yourself be. Obviously, you should be in sad bury your head in the pillow for weeks...but numb. Numb is just fine.