me and my friends just got into the worst fight ever

me and my friends have kno eachother for like 9 years and we just got into the worst fight we have ever had i think this is the first fight we've ever gotten into were we said i hate you and meant it. i just dont kno what 2 do i dont kno if we will ever make-up and its our 8th grade year. which we've been goin to school with each other since preschool and its just so hard pleas give me some advise.