Has anybody ever experienced this?

So today was my first day in high school (im a junior) in the US (coming from another country) and I have no worries with the lessons and everything. One of my concern is getting lost. The school building is huge and i'm scared to be late to class. Question is:Have you ever got lost around the school when being a new student? How did you handle it? How long does it usually take to get used to the building?
Thanks and have a good day.
Has anybody ever experienced this?
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