You're in uncharted waters.

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If this happens out in the real world, you might say something like:

やばい

迷子
まいご

かも

Uh oh. I think I might be lost.
uh oh
lost person
maybe
The word 迷子 literally means lost (迷) child (子). You don't have to be a child to use this word, though.
But in the meantime...