Hi, Brother Et, always enjoyable to talk with you. To answer your question, the way I would answer it is that you have a much harder time than me at meditation because of that Hijacker entity in you. If you were in Japan, a Shinto temple would contact a Shaman to do an Exorcism on you. Because that Hijacker of yours has all the earmarks of an invading entity. After all, Shintoism is a religion of Animism--Nature-Spirits--and they can be either benevolent or malevolent. The invading spirit can be either an Elemental or it can be the spirit of a Human who had died. For example, I saw once on YouTube a video of an Exorcism in Cambodia where a lady was harassed by a spirit. The Shaman identified it as the spirit of her deceased husband. The husband had known that the wife was cheating on him with another man. So in resentment, the spirit was harassing the lady. When the lady expressed sincere remorse, then at that point the spirit left her in peace. It seems that when the husband had been alive, he had acted coldly to the wife, so it was the husband's fault too--because his neglect made his wife turn to another man. Once the spirit was made aware of that, then it left the lady in peace.
So sometimes I think your Hijacker entity is that kind of spirit. But it's just my opinion. Anyway on this forum, we are Not allowed to force our belief on others. But we can at least share them, so others of us can explore different possibilities.
Plus there are some cases where a Psychiatrist could Not chase away the entity--but going to an Exorcism succeeded. The answer is to figure out whether the problem is a Psychiatric problem or an Exorcism problem.