I've improved a great deal, because I have been fortunate to be able to build a team of doctors and get access to treatments.
The most critical thing is to have access to tests that find treatable problems, like infections, immunodeficiency, autoimmunity, CCI, nutrient deficiency, hormonal imbalances, heavy metal or mold toxicity, mast cell activation, POTS, plans/or several other comorbid conditions.
And then provide access to treatments like IVIG, Valcyte or other antivirals, antibiotics, PT and/or surgery, a customized hormone or supplement program, mitochondrial supplements, a chelation/detox program, mast cell meds, POTS meds, etc.
I'm not sure how instructional books, demo videos, and proprietary supplements would help most of us. It's just too complex, unfortunately. Sounds like a great way for an entrepreneur/charlatan to make money at our expense, though!
Seriously, we do live in the age of telemedicine, and I do see some of my doctors remotely, by phone, with them emailing lab orders and treatment plans, and faxing prescriptions to pharmacies and arranging IV treatments with local nursing services, and providing advice that I can follow up on with my local doctors.