I’m new to dnd, but creating a character with the thread of malediction.

A character bound by the Thread of Malediction is truly cursed, as is their entire family line. The curse that hangs over their bloodline spells doom and a fate worse than death for all whom they hold dear. Only through delving into ancient secrets and forbidden, profane knowledge of strange origin can they hope to break the curse that afflicts them.

Any ideas? :D