"When I came home, I just hugged my whole family 'cause I missed them so much," she said.
The last time she saw them was back when her dad rushed her to the hospital.
"I didn't feel well. I couldn't breathe and like my head was just hurting," she described.
'Miracle man' says prayer helped him survive COVID-19 at age 75
Although she was medically sedated most of the time and doesn't remember much, doctors said she was close to death, twice.
"I happened to be on call one night where she again got very, very sick, very acutely, and I didn't know (if) she was going to live through that night," said Dr. Jason Knight.
"I was just scared. I was anxious, right?" Agustina said.
But through a group effort with various providers and Agustina's ability to fight, they said they were able to improve her condition and ultimately help her survive.
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"Knowing that she was our first really sick COVID-19 patient who we didn't really know if she was gonna survive. It was something we needed," said Dr. Knight.
Now, Agustina has a message to kids about their overall health.
"Stay healthy, eat right, eat your vegetables, eat anything healthy, like don't eat any junk food or this and that," she said.
And if you do get the virus, she said to be brave like her and be confident.
Dr. Knight said the patients they worry about the most are those with heart or lung problems, chronic diseases that affect the immune system, patients with cancer and the biggest risk factor - obesity.