I Need Advice (Musically Related) Right Away!

i need help really bad and please dont laugh at me
I
CAN'T
READ
SHEET
MUSIC
aaareeggghhhhhuuuuu!!!!!
i know it sounds terrible and it is cuz im in my school chorus and i want to do a duet but the teacher knows about my problem so she wont let me do the duet until/unless i learn how to read sheet music (the notes you sing)
can someone save me? pretty please? with a cherry on top?