u can do all of it from a to e
i recommend u go all the way dedicate ur life in destroying them in all the sneaky ways u can
at 1st they will try to retaliate gang up on u but when u persist show them that u dont care about any thing but ruining their lives
in the end u will be victorious they will flee in panic
watch the movie cape fear to get the idea about commitment in this area
i wish u luck