You definitely don't want to take off the nail yourself. When Bailey messed up her toenail, it had to "quicked". They gave her a little numbing stuff to the toe and some sort of dog tranquilizer to really chill her out. Then they cut the nail down to a little nub.

If they have to do it Jada, I described it in detail in this thread:

Bailey's Messed up Toenail

Good luck and give Jada some hugs from me!