If the entity is still present, then, you have a nasty one. Take them to their proper place there is no Sin, God loves them. But an entity, can resist the shackle method. Check to make sure that you are clear each day. Use this method daily.
People send pyschic influences to others routinely, especially family members.
Then, ask for your consciousness to be balanced, and shielded with the Holy Spirit. If it does not ask them to clear and shield you again. A numbered chart can be any piece of paper with the numbers from 1 to 10 listed. Write the numbers from left to right, on a page. It might take some time to learn the pendulum, so practice a little each day.