Question about remedial cles?

i am really horrible in math but good in other subjects, i'm majoring in nursing and i'm taking remedial math (MAT082), and i think i'll do horrible on the final .. if i fail do i have to retake it over again? BTW I've already chosen my other math cl, MAT101 can i retake the remedial cl later? How does this work? :/ any advice on what to do will be awesome :) thanks.