Sorry to hear. It's much easier to repair when the split isn't complete
(that is, the broken segment is still attached at one end). I have fake
nails as well (as recommended by my teacher) but I have not used them,
and will try to avoid it.
Some of my repairs have held up better than others. And when I've seen
one repair starting to fail, I put another layer of silk and glue on to
secure it. That's worked too, though eventually it makes the nail look
a bit lumpy. With one break--a crack transversely across the thumbnail
from one side to another--I was able to maintain the repair for a couple
of months (needed to patch 2 or 3 times) until the fractured segment
grew completely out. With another repair I was not so lucky--caught my
m fingertip in something (can't remember just what), and there was some
bleeding under the nail. That led to a distinct dent in the nail across
from one side to the other. I tried to patch it, but before it could
grow out the whole thing failed. Just missed tearing into the flesh.
But now that's grown out too, and the nail is starting to look normal again.