Sleep schedule

Kayla • Mama to the beautiful Jade Veronica 👶🏽🎀
My 2-month-old daughter put herself on a sleep schedule a few weeks ago and I noticed so I followed it. Bath at 7, feeding at 7:30, sleep at 8 and she wouldn't wake until around 1 for a feeding, 5 for a feeding and then up around 7 or 8 for the day. This week she has not been following the schedule and nothing in the routine changed. By 10, she's back up and fusses all night until around 4 or 5 before actually falling asleep. I return to work in two weeks and would really like for her to go back to the other routine. Any idea how I can get her back on a schedule?