Before I make some critique on the poem, your note at the end of the poem mentioned that you are alone at home with no adults around? Can you ask the parent of a friend to assist/help you? Just an idea.
Moving on to the critique for the poem, this poem is nicely done as the anguish and the sense of urgency of the situation comes througn quite well. Good work and keep writing.
I hope that your Grandma gets better.
Take care!
Warmest regards,
Steve
P.S. Thanks ever so much for your critique on my work, much obliged.