And i have spent the last 11 years trying every possible supplement there is with ZERO benefits. I'm ready to take some chances before i see the rest of my life pass me by while i'm imprisoned in my bed.
I'm sorry, but supplements do change one's biochemistry. It's impossible that they do nothing.
However, for the most part, they do not work by themselves, but in concert with cofactors to make entire pathways and groups of pathways work. I have seen many many many people here say supplement X doesn't work, but it becomes very apparent when you inquire, that they didn't take the needed cofactors. So, in that case, they wouldn't work.
The other thing that can happen is that there is some missed overriding thing going on that is so bad that it outpowers the benefits of any supplement. Let's take arsenic toxicity for example, which impairs ATP production. Or an active case of Epstein-Barr. Or a genetic problem where a specific enzyme does not work. There are many other things like this, and again, I've seen people who claim that they're doctors don't think anything's the matter with them, when they switch doctors and get proper testing, uncover issues like this, which, when treated, and then supplements are taken but things work a lot better.
So, if supplements aren't working, it's a clear sign that someone's doctor hasn't dug hard enough, and more testing and attention to details is needed.