What a frightening thing to have entertwined into your life over such a long period! Have you ever had your house blessed, to help rid you of this horrible monster? It can be blessed by a Catholic priest, or a shaman from a nearby Native American Tribe, or you can do a house blessing on your own. If you know some Native American tribes in your area, contact them, and ask if they have a shaman who will do a house blessing for you. Most of them are very receptive to helping others in this way.
If you want to do your own house blessing, we can help you to with instructions and the items you will need to use. Let me know if you want to try this, and I will do my best to help guide your through it. I can tell you what to get, and how to use it. This type of blessing has it's roots in the Native American culture, and I have done it myself in my own house. I was amazed at how well it cleared the air of negativity, and brought peace to the general atmosphere of our house. I wasn't fighting anything so dreadful as what you are describing, but who knows?? This might work very well for you. It involves the burning of white sage, cedar, and sweetgrass, You can bless yourself as well in the smoke of these sacred Native American plants. Burning them at any time while you are at home is surprisingly relaxing and comforting. You would have to experience it to truly understand it. Just let me know if you would like to try this method, and I can help you gather what you will need, and tell you how to proceed.
You have been through such an ordeal. I can understand why you are careful about who you talk to about this. Many people do not understand, and are certain that it is a problem with your own mental health that is creating the troubles. That isn't necessarily the case at all... but many are afraid to even consider facing something like this and admitting to themselves that it is REAL.
Hang in there, and I will send you much white light and my prayers to keep you emotionally strong, in your effort to keep this being out of your life. I am with you 110%.
If you decide to try to locate a Native American shaman in your area, and cannot find one, let me know, and maybe I can help.
Many blessings,
Mare