While at school, focus on your professional efforts.
Have a ready list of what it is you are expected to and hope to do.
Prioritize that list and match it with the time you have.
When resources, supports, and structures are needed or unavailable, find ways to reach out for those resources, structures, and supports to make the work you do better.
Make sure that the time scheduled for students is mainly spent on caring for, teaching, and leading students forward.
Stay attuned, do the work, and make time for rest, relaxation, and rejuvenation too.