Routines help!!!!

I need help getting more in a routine with my baby bc her older siblings will be starting school in a few weeks and right now we’re just going with the flow of things!! Lately she has been more fussy than usual so idk what’s going on there. Her sleep schedule during the day is nap whenever and her bedtime is usually no later than 10:30 but I would like to have her asleep by 9:30. I’m one that likes a schedule cause it helps me stay on top of things. Let me know what your routines are on a daily and how long naps are and how many?!