Id just kill myself because in my book there is NO way to fix that.. You cant kill all of those zombies! And if u try u would die in the procces so i would want to die peacefully, and not die with a back ache from attempting to kill them. Really there is NO point because it is only YOU, the only person against endless zombies.. Unless you want to find a cure wich would take too long.... The you are FUCKED because you cant rebuild mankind if only you survive!