Does she go outside?

If it still bleeding, you can get some pet stuff from the pet store
that stops bleeding. It should be with the clippers. Or you get Alum
from the spice aisle at the grocery store. I use that when trimming dog
nails.

We had something similar happen a few weeks ago. My nephew's cat
doesn't like to sleep in his bedroom, so my nephew would close the
door. Chase figured out how to open the door, so my nephew blocked the
door with crates. Well, Chase spent the night trying to get that door
open. When i got home for work the next day, he wouldn't come when I
called. Just sat there and sounded pitiful. He finally came over, but
didn't jump up. I knew something was wrong. My nephew walked in and
told me that he had tried to declaw himself. They found two complete
claws on the floor. One was clean, one was bloody. And there were
bloody pawprints on the floor around the door.

I can't imagine how he did this and didn't stop at the pain. There was
nothing the vet could really do. It wasn't infected, though we kept an
eye on that. He was sensitive for awhile, but  ran and played after a
couple days. He was very squirmy the last time I trimmed his nails. I
did his back feet first since they were good. Then I very carefully
clipped the sharp nails on teh front paws while barely squeezing his
paws since it was still very uncomfortable for him. He cried a little.
A couple days ago, I took a more detailed look at the two claws (or
lack of claws. Looks like two fuzzy lumps in there. Nothing like a
nail. I don't know if they will grow back or not. I do hope so. He does
seem to be getting less sensitive, so the healing is continuing.

I would keep an eye on the foot, make sure there is no swelling, heat,
or other signs of infection. Keep up with the special kitty litter
while she heals.

Not a whole lot you can do except make her comfortable and be on the
lookout for infection or other problems.