L.O.
your body will adjust..
I am nursing my son 15 months...
he nurses morning (7am), before nap (12 noon) and at bedtime 730 pm.
At his age nursing is not really about nutrition. it is comfort and relaxation. It helps them be still long enough to relax and fall asleep.
your supply may decrease but it will be enough for the baby.
if she wants more she will nurse for a longer period of time.