Eleven-year-old Miah Cerrillo snapped into “survivor mode” after watching her classmates and teachers massacred by a crazed gunman in the Uvalde, Texas, school shooting that left 21 victims dead.

The fourth grader smeared another girl’s blood on her body to convince the gunman that she was dead.

“My sister-in-law said that she saw her friend full of blood, and she got blood and put it on herself,” said Cerrillo’s aunt, Blanca Rivera, according to a report.

“My brother said she had bullet fragments in her back,” she added.

She told her father that she witnessed her teacher being shot to death and her phone slipping from her hands. Thinking on her feet, Miah used her teacher’s phone to call 911.

When one of her classmates was shot and bleeding, Miah made a decision to lie on top of her, so it appeared that she was also dead.

Her classmate was still breathing at first but died before help arrived on the scene.