I use Angelica Root in my protection amulet. I find it to be powerful in protecting me from negativity and verbal abuse. I have not been cursed before so I've not used it for breaking a curse. I alos love it's peppery fragrance.
You can make a poppet as you sew it together repeat I have made you, and your name is ______. You shall receive the negative energy sent by ______ in my place.
Or you can make a Magical Mirror First, consecrate the mirror like you would any other of your magical tools. Place the mirror, standing up, in a bowl of black salt, to provide protection and repel negativity. Place something in front of the mirror that represents the person that is harming you, This will reflect that individual?s negative energy back to them.
A good book to own is Protection and Reversal of Magic by Jason Miller, it's a must have for learning if you are a target and how to keep your protection up. So buy that book its on amazon.
also you may want to make a Witches bottle, use a small jar, over a month (from one full moon to the next) throw any sharp object in the jar, rusty nails, pins, razor blades, ect. then on the Full Moon, (wright your own words) for protection, add your own hair, nail clippings, and urine, seal with black candle wax and bury it, it doesn't matter where, just make sure it will never be dug up, most people put them near their homes, but that really doesn't matter as long as it stays put.