V doesn’t want to take her second nap anymore. Is there a point when she should just naturally stop?

Usually her schedule is like this:
7am Wake up
7:30 eat breakfast
9am nap 1 (sleep for 1 or 1.5 hours)
11:30 eat lunch
1:30 snack
2pm nap 2 (1 to 1.5 hours)
3:30 dinner
6pm snack
7pm 8 oz bottle of milk
7:15 sleep

Now she’s not sleeping for the second nap. Maybe I’ll have to try after her 3:30pm dinner.