I’d say slow it down and back up a notch… You may have multiple parasites, it’s hard to say.
Banish your whole house, your bedroom, and you very thoroughly.
Then wait. Give it time to settle and see how you feel. You may need to banish and cleanse multiple times to get clear.
When you are clear, you’re not done. You are still wide open and there’s nothing to stop the nasties coming back, or new ones coming in.
So next you set up wards and shields. These are also called protections.
Here’s some ideas for that, go with what feels right. This is called “filling your intuition”. Or following your gut. The more you do that the better you get at it.
After at least a month where you are clean and clear, and know who you are again without this negative influence, and your wards are solid, then do the petition letter again.
Banish again after doing it.