Losing nails ain't so bad, Yes they do grow back and if you 'train' them as the go along you won't have any problems.

To keep the ends from curling down you can file across the top of the nail-
Parallel to the toe.

DO THIS IN STAGES! OR better yet, Ask the doc about how to this!!!!!

What that does it weakens the nail and forces the ends that grow downward to grow flat.