To answer your question let me pose you a question, when you think of your target do you hate them, do you feel anger towards them ? Rage ? Wrath ?.
Good lock onto it, feel it and view internally all that they have did, or all they will do or could potentially do. Then feel that anger you have locked onto intensify within you, keep exacerbating that anger till it becomes rage.
Don’t just stop there intensify it until it becomes wrath, then when you feel like you want to hit, hurt or even kill that target, when you embrace that sudden aggressive murderous rage, it is a well of primal fiery raging power.
That power then must be fully exhausted into the ritual until you are shaking, thrashing on the ground, fists balled and tightened, muscles tight and contracting. Allow even the most subtle frustration to become exacerbated into a full rage.
At this point the key and critical part is fully pushing that rage into the ritual, into the forces summoned or into the image/idol/poppet of the target. Push all that hate, rage, bloodlust, vengeance and wrath into the world. So it no longer poisons you but now plagued them and it is the fuel for whatever baneful attack you have placed upon them.
The key at the end of the ritual once you say “so it is done” you must be entirely drained until there is no shed of anger left for that person, until you no longer care anymore, no longer care about them or what they’ve done. Until you no longer care about their existence, complete push it out of you until you no longer care even if the ritual works or not.
At that moment in your peaceful moment, you should be entirely drained and tired, ready to sleep or just rest at that moment and only at that moment say “so it is done” then watch your vengeance reign down upon them, like the wrath of a god.